<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3-mathml3.dtd">
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.3" xml:lang="EN">
<front>
<journal-meta>
<journal-id journal-id-type="publisher-id">Front. Psychol.</journal-id>
<journal-title-group>
<journal-title>Frontiers in Psychology</journal-title>
<abbrev-journal-title abbrev-type="pubmed">Front. Psychol.</abbrev-journal-title>
</journal-title-group>
<issn pub-type="epub">1664-1078</issn>
<publisher>
<publisher-name>Frontiers Media S.A.</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.3389/fpsyg.2025.1742211</article-id>
<article-version article-version-type="Version of Record" vocab="NISO-RP-8-2008"/>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Original Research</subject>
</subj-group>
</article-categories>
<title-group>
<article-title>An investigation of the relationship between grit, physical activity, and self-efficacy: a variable-centered and person-centered approach</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author" equal-contrib="yes">
<name>
<surname>Chen</surname>
<given-names>Bin</given-names>
</name>
<xref ref-type="aff" rid="aff1"><sup>1</sup></xref>
<xref ref-type="author-notes" rid="fn0002"><sup>&#x2020;</sup></xref>
<uri xlink:href="https://loop.frontiersin.org/people/3143404"/>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="software" vocab-term-identifier="https://credit.niso.org/contributor-roles/software/">Software</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Funding acquisition" vocab-term-identifier="https://credit.niso.org/contributor-roles/funding-acquisition/">Funding acquisition</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="resources" vocab-term-identifier="https://credit.niso.org/contributor-roles/resources/">Resources</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Writing &#x2013; original draft" vocab-term-identifier="https://credit.niso.org/contributor-roles/writing-original-draft/">Writing &#x2013; original draft</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Project administration" vocab-term-identifier="https://credit.niso.org/contributor-roles/project-administration/">Project administration</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="visualization" vocab-term-identifier="https://credit.niso.org/contributor-roles/visualization/">Visualization</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="methodology" vocab-term-identifier="https://credit.niso.org/contributor-roles/methodology/">Methodology</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="investigation" vocab-term-identifier="https://credit.niso.org/contributor-roles/investigation/">Investigation</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Writing &#x2013; review &#x0026; editing" vocab-term-identifier="https://credit.niso.org/contributor-roles/writing-review-editing/">Writing &#x2013; review &#x0026; editing</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Data curation" vocab-term-identifier="https://credit.niso.org/contributor-roles/data-curation/">Data curation</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="conceptualization" vocab-term-identifier="https://credit.niso.org/contributor-roles/conceptualization/">Conceptualization</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="validation" vocab-term-identifier="https://credit.niso.org/contributor-roles/validation/">Validation</role>
</contrib>
<contrib contrib-type="author" equal-contrib="yes">
<name>
<surname>Hua</surname>
<given-names>Shushu</given-names>
</name>
<xref ref-type="aff" rid="aff2"><sup>2</sup></xref>
<xref ref-type="author-notes" rid="fn0002"><sup>&#x2020;</sup></xref>
<uri xlink:href="https://loop.frontiersin.org/people/3273048"/>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Writing &#x2013; review &#x0026; editing" vocab-term-identifier="https://credit.niso.org/contributor-roles/writing-review-editing/">Writing &#x2013; review &#x0026; editing</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="investigation" vocab-term-identifier="https://credit.niso.org/contributor-roles/investigation/">Investigation</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="software" vocab-term-identifier="https://credit.niso.org/contributor-roles/software/">Software</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Writing &#x2013; original draft" vocab-term-identifier="https://credit.niso.org/contributor-roles/writing-original-draft/">Writing &#x2013; original draft</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Funding acquisition" vocab-term-identifier="https://credit.niso.org/contributor-roles/funding-acquisition/">Funding acquisition</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="conceptualization" vocab-term-identifier="https://credit.niso.org/contributor-roles/conceptualization/">Conceptualization</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="supervision" vocab-term-identifier="https://credit.niso.org/contributor-roles/supervision/">Supervision</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Formal analysis" vocab-term-identifier="https://credit.niso.org/contributor-roles/formal-analysis/">Formal analysis</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Data curation" vocab-term-identifier="https://credit.niso.org/contributor-roles/data-curation/">Data curation</role>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Tu</surname>
<given-names>Zaibin</given-names>
</name>
<xref ref-type="aff" rid="aff3"><sup>3</sup></xref>
<uri xlink:href="https://loop.frontiersin.org/people/3284440"/>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Writing &#x2013; review &#x0026; editing" vocab-term-identifier="https://credit.niso.org/contributor-roles/writing-review-editing/">Writing &#x2013; review &#x0026; editing</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Funding acquisition" vocab-term-identifier="https://credit.niso.org/contributor-roles/funding-acquisition/">Funding acquisition</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Writing &#x2013; original draft" vocab-term-identifier="https://credit.niso.org/contributor-roles/writing-original-draft/">Writing &#x2013; original draft</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="supervision" vocab-term-identifier="https://credit.niso.org/contributor-roles/supervision/">Supervision</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Project administration" vocab-term-identifier="https://credit.niso.org/contributor-roles/project-administration/">Project administration</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="software" vocab-term-identifier="https://credit.niso.org/contributor-roles/software/">Software</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="visualization" vocab-term-identifier="https://credit.niso.org/contributor-roles/visualization/">Visualization</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Formal analysis" vocab-term-identifier="https://credit.niso.org/contributor-roles/formal-analysis/">Formal analysis</role>
</contrib>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Hu</surname>
<given-names>Chang</given-names>
</name>
<xref ref-type="aff" rid="aff1"><sup>1</sup></xref>
<xref ref-type="corresp" rid="c001"><sup>&#x002A;</sup></xref>
<uri xlink:href="https://loop.frontiersin.org/people/2724197"/>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="visualization" vocab-term-identifier="https://credit.niso.org/contributor-roles/visualization/">Visualization</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Data curation" vocab-term-identifier="https://credit.niso.org/contributor-roles/data-curation/">Data curation</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Project administration" vocab-term-identifier="https://credit.niso.org/contributor-roles/project-administration/">Project administration</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="resources" vocab-term-identifier="https://credit.niso.org/contributor-roles/resources/">Resources</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="validation" vocab-term-identifier="https://credit.niso.org/contributor-roles/validation/">Validation</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="software" vocab-term-identifier="https://credit.niso.org/contributor-roles/software/">Software</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="investigation" vocab-term-identifier="https://credit.niso.org/contributor-roles/investigation/">Investigation</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Writing &#x2013; review &#x0026; editing" vocab-term-identifier="https://credit.niso.org/contributor-roles/writing-review-editing/">Writing &#x2013; review &#x0026; editing</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Funding acquisition" vocab-term-identifier="https://credit.niso.org/contributor-roles/funding-acquisition/">Funding acquisition</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="conceptualization" vocab-term-identifier="https://credit.niso.org/contributor-roles/conceptualization/">Conceptualization</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Writing &#x2013; original draft" vocab-term-identifier="https://credit.niso.org/contributor-roles/writing-original-draft/">Writing &#x2013; original draft</role>
</contrib>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Yang</surname>
<given-names>Jing</given-names>
</name>
<xref ref-type="aff" rid="aff4"><sup>4</sup></xref>
<xref ref-type="corresp" rid="c001"><sup>&#x002A;</sup></xref>
<uri xlink:href="https://loop.frontiersin.org/people/3278864"/>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Funding acquisition" vocab-term-identifier="https://credit.niso.org/contributor-roles/funding-acquisition/">Funding acquisition</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="resources" vocab-term-identifier="https://credit.niso.org/contributor-roles/resources/">Resources</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="validation" vocab-term-identifier="https://credit.niso.org/contributor-roles/validation/">Validation</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Project administration" vocab-term-identifier="https://credit.niso.org/contributor-roles/project-administration/">Project administration</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="investigation" vocab-term-identifier="https://credit.niso.org/contributor-roles/investigation/">Investigation</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="supervision" vocab-term-identifier="https://credit.niso.org/contributor-roles/supervision/">Supervision</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Writing &#x2013; original draft" vocab-term-identifier="https://credit.niso.org/contributor-roles/writing-original-draft/">Writing &#x2013; original draft</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Data curation" vocab-term-identifier="https://credit.niso.org/contributor-roles/data-curation/">Data curation</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="conceptualization" vocab-term-identifier="https://credit.niso.org/contributor-roles/conceptualization/">Conceptualization</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="Writing &#x2013; review &#x0026; editing" vocab-term-identifier="https://credit.niso.org/contributor-roles/writing-review-editing/">Writing &#x2013; review &#x0026; editing</role>
<role vocab="credit" vocab-identifier="https://credit.niso.org/" vocab-term="methodology" vocab-term-identifier="https://credit.niso.org/contributor-roles/methodology/">Methodology</role>
</contrib>
</contrib-group>
<aff id="aff1"><label>1</label><institution>Physical Education College, Jiangxi Normal University</institution>, <city>Nanchang</city>, <country country="cn">China</country></aff>
<aff id="aff2"><label>2</label><institution>College of Humanities and Social Sciences, Zhongkai University of Agriculture and Engineering</institution>, <city>Guangzhou</city>, <country country="cn">China</country></aff>
<aff id="aff3"><label>3</label><institution>School of Educational Science, Hanshan Normal University</institution>, <city>Chaozhou</city>, <country country="cn">China</country></aff>
<aff id="aff4"><label>4</label><institution>School of Psychology and Sociology, Mianyang Normal University</institution>, <city>Mianyang</city>, <country country="cn">China</country></aff>
<author-notes>
<corresp id="c001"><label>&#x002A;</label>Correspondence: Chang Hu, <email xlink:href="mailto:huchang@jxnu.edu.cn">huchang@jxnu.edu.cn</email>; Jing Yang, <email xlink:href="mailto:cherryjeune@gmail.com">cherryjeune@gmail.com</email></corresp>
<fn fn-type="equal" id="fn0002"><label>&#x2020;</label><p>These authors have contributed equally to this work and share first authorship</p></fn>
</author-notes>
<pub-date publication-format="electronic" date-type="pub" iso-8601-date="2026-01-06">
<day>06</day>
<month>01</month>
<year>2026</year>
</pub-date>
<pub-date publication-format="electronic" date-type="collection">
<year>2025</year>
</pub-date>
<volume>16</volume>
<elocation-id>1742211</elocation-id>
<history>
<date date-type="received">
<day>08</day>
<month>11</month>
<year>2025</year>
</date>
<date date-type="rev-recd">
<day>07</day>
<month>12</month>
<year>2025</year>
</date>
<date date-type="accepted">
<day>10</day>
<month>12</month>
<year>2025</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright &#x00A9; 2026 Chen, Hua, Tu, Hu and Yang.</copyright-statement>
<copyright-year>2026</copyright-year>
<copyright-holder>Chen, Hua, Tu, Hu and Yang</copyright-holder>
<license>
<ali:license_ref start_date="2026-01-06">https://creativecommons.org/licenses/by/4.0/</ali:license_ref>
<license-p>This is an open-access article distributed under the terms of the <ext-link ext-link-type="uri" xlink:href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution License (CC BY)</ext-link>. The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.</license-p>
</license>
</permissions>
<abstract>
<sec>
<title>Background</title>
<p>Grit, defined as perseverance and passion for long-term goals, is a vital psychological trait that contributes to academic success and overall wellbeing. At the same time, regular PA supports physical and mental health, yet its engagement often declines among university students. Although grit has been linked to health-promoting behaviors, the mechanisms underlying this association remain unclear. This study investigated the mediating role of self-efficacy from a variable-centered perspective and identified student profiles based on grit and self-efficacy through a person-centered approach.</p>
</sec>
<sec>
<title>Methods</title>
<p>A cross-sectional survey of 3,752 Chinese university students was conducted. Structural equation modeling tested the mediating role of self-efficacy in the grit-PA relationship. Latent Profile Analysis identified subgroups with distinct combinations of grit and self-efficacy, with PA levels compared across profiles.</p>
</sec>
<sec>
<title>Results</title>
<p>The variable-centered analysis revealed that grit was positively associated with PA (<italic>&#x03B2;</italic>&#x202F;=&#x202F;0.370, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001), with self-efficacy serving as a significant partial mediator, accounting for 21% of the total effect (indirect effect&#x202F;=&#x202F;0.077, 95% CI [0.058, 0.097]). The person-centered analysis identified three distinct profiles: &#x201C;Limited Self-Regulation&#x201D; (16.12%), &#x201C;Moderate Self-Regulation&#x201D; (55.84%), and &#x201C;Strong Self-Regulation&#x201D; (28.04%). Students in the Strong Self-Regulation profile demonstrated significantly higher PA engagement (<italic>M</italic>&#x202F;=&#x202F;49.03) compared to those in the Moderate (<italic>M</italic>&#x202F;=&#x202F;31.56) and Limited (<italic>M</italic>&#x202F;=&#x202F;17.84) profiles (<italic>F</italic>&#x202F;=&#x202F;225.11, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001, &#x03B7;<sup>2</sup>&#x202F;=&#x202F;0.107).</p>
</sec>
<sec>
<title>Conclusion</title>
<p>Self-efficacy is consistent with a mediating role linking grit to PA among university students. The identification of three distinct profiles reveals meaningful heterogeneity in motivational configurations. Students with high grit and self-efficacy demonstrate optimal PA engagement, while those low in both represent a vulnerable subgroup requiring targeted intervention. Integrating variable- and person-centered approaches provides a comprehensive understanding of motivational processes underlying active lifestyles in higher education, emphasizing the need for tailored, profile-specific interventions.</p>
</sec>
</abstract>
<kwd-group>
<kwd>grit</kwd>
<kwd>latent profile analysis</kwd>
<kwd>mediation analysis</kwd>
<kwd>physical activity</kwd>
<kwd>self-efficacy</kwd>
<kwd>university students</kwd>
</kwd-group>
<funding-group>
<funding-statement>The author(s) declared that financial support was received for this work and/or its publication. This work was supported by Mianyang Normal University (Grant nos. CXTD2023PY07 and QD2024A04).</funding-statement>
</funding-group>
<counts>
<fig-count count="3"/>
<table-count count="7"/>
<equation-count count="0"/>
<ref-count count="99"/>
<page-count count="14"/>
<word-count count="10667"/>
</counts>
<custom-meta-group>
<custom-meta>
<meta-name>section-at-acceptance</meta-name>
<meta-value>Sport Psychology</meta-value>
</custom-meta>
</custom-meta-group>
</article-meta>
</front>
<body>
<sec sec-type="intro" id="sec1">
<label>1</label>
<title>Introduction</title>
<p>Physical inactivity is now recognized as a significant global public health challenge (<xref ref-type="bibr" rid="ref78">Santos et al., 2023</xref>; <xref ref-type="bibr" rid="ref86">van Sluijs et al., 2021</xref>; <xref ref-type="bibr" rid="ref28">Dogra et al., 2022</xref>). According to the World Health Organisation, approximately 31% of adults fail to meet even the minimum recommended levels of physical activity (PA), a shortfall that directly contributes to the rising prevalence of chronic diseases (<xref ref-type="bibr" rid="ref37">Guthold et al., 2020</xref>; <xref ref-type="bibr" rid="ref83">Strain et al., 2024</xref>; <xref ref-type="bibr" rid="ref64">Morou&#x00E7;o et al., 2022</xref>; <xref ref-type="bibr" rid="ref18">Chen et al., 2025</xref>). University students sit at a pivotal developmental juncture: they are transitioning into adulthood while simultaneously laying the foundations of their future professional and personal lives (<xref ref-type="bibr" rid="ref58">Maggs, 2024</xref>). Their health behaviors, therefore, have consequences that reverberate far beyond the campus, shaping labor-force productivity, healthcare demand, and ultimately societal wellbeing (<xref ref-type="bibr" rid="ref77">Sanci et al., 2022</xref>; <xref ref-type="bibr" rid="ref2">Almoraie et al., 2025</xref>; <xref ref-type="bibr" rid="ref52">Jong et al., 2025</xref>). However, accumulating evidence suggests that students&#x2019; physical activity levels decline sharply after they enter higher education (<xref ref-type="bibr" rid="ref38">Hammer et al., 2025</xref>; <xref ref-type="bibr" rid="ref27">Deforche et al., 2015</xref>). Confronted with heavy academic workloads, social pressures, and career preparation, many struggle to maintain regular exercise routines (<xref ref-type="bibr" rid="ref41">Hilger-Kolb et al., 2020</xref>; <xref ref-type="bibr" rid="ref15">Brown et al., 2024</xref>). The resulting sedentariness heightens their risk for cardiometabolic conditions and is linked to increased anxiety, depression, and stress (<xref ref-type="bibr" rid="ref14">Booth et al., 2023</xref>; <xref ref-type="bibr" rid="ref10">Biddle et al., 2023</xref>; <xref ref-type="bibr" rid="ref11">Biddle et al., 2021</xref>).</p>
<p>Most investigations into student inactivity have focused on external barriers, such as crowded timetables, limited facilities, high membership fees, or a lack of social support (<xref ref-type="bibr" rid="ref36">Griffiths et al., 2022</xref>; <xref ref-type="bibr" rid="ref63">Moore et al., 2023</xref>; <xref ref-type="bibr" rid="ref81">Silva et al., 2022</xref>). Although valuable, such work cannot fully explain why two students exposed to the same campus environment often display markedly different exercise patterns. This discrepancy suggests that intrapersonal factors&#x2014;particularly enduring psychological attributes&#x2014;may be decisive in determining who persists in PA when circumstances are unfavorable (<xref ref-type="bibr" rid="ref87">Vella et al., 2023</xref>; <xref ref-type="bibr" rid="ref92">Wilhite et al., 2023</xref>; <xref ref-type="bibr" rid="ref61">Mart&#x00ED;n-Rodr&#x00ED;guez et al., 2024</xref>). Accordingly, the present study shifts the analytic lens from external constraints to internal motivation, examining how positive psychological traits are associated with students&#x2019; exercise behavior.</p>
<p>Among the traits highlighted by contemporary positive psychology, grit&#x2014;defined as sustained perseverance and passion for long-term goals (<xref ref-type="bibr" rid="ref30">Duckworth et al., 2007</xref>)&#x2014;has attracted substantial attention. Individuals high in grit show greater Resilience in the face of setbacks and a stronger willingness to invest effort over extended periods (<xref ref-type="bibr" rid="ref17">Calo et al., 2024</xref>; <xref ref-type="bibr" rid="ref12">Biggs et al., 2024</xref>; <xref ref-type="bibr" rid="ref84">Sulla et al., 2022</xref>). Applied to health behavior, gritty students may endure the fatigue, time pressure, and monotony that often accompany training, viewing exercise as an indispensable pathway to long-term health (<xref ref-type="bibr" rid="ref39">Hartzel et al., 2021</xref>; <xref ref-type="bibr" rid="ref4">Bae et al., 2024</xref>; <xref ref-type="bibr" rid="ref35">Estep et al., 2021</xref>). Despite the intuitive appeal of this link, the psychological mechanism translating grit into actual PA remains under-specified (<xref ref-type="bibr" rid="ref74">Rutberg et al., 2020</xref>).</p>
<p>One plausible mediator is self-efficacy&#x2014;the belief in one&#x2019;s capability to organize and execute courses of action required to attain a goal (<xref ref-type="bibr" rid="ref6">Bandura, 1997</xref>). Social Cognitive Theory posits that self-efficacy is a proximal determinant of both the initiation and maintenance of behavior (<xref ref-type="bibr" rid="ref79">Schwarzer and Renner, 2000</xref>; <xref ref-type="bibr" rid="ref5">Bandura, 1991</xref>). Students with higher grit are more likely to persist through repeated bouts of practice, thereby accumulating mastery experiences that fortify their confidence in exercising successfully (<xref ref-type="bibr" rid="ref23">Daniels et al., 2021</xref>). Heightened exercise-specific self-efficacy, in turn, should enhance motivation, goal setting, and behavioral persistence (<xref ref-type="bibr" rid="ref13">Blom et al., 2021</xref>; <xref ref-type="bibr" rid="ref60">Martinez Kercher et al., 2024</xref>). Thus, self-efficacy may function as the cognitive &#x201C;bridge&#x201D; that channels grit into sustained PA (<xref ref-type="bibr" rid="ref22">Dai et al., 2025</xref>).</p>
<p>However, traditional variable-centered analyses implicitly assume that all individuals follow the same psychological pathway, risking the oversight of meaningful heterogeneity (<xref ref-type="bibr" rid="ref56">Liu et al., 2024</xref>; <xref ref-type="bibr" rid="ref82">Stiller et al., 2023</xref>). In reality, the interplay between grit and self-efficacy may vary considerably. Some students may exhibit both persistence and confidence, while others may show perseverance without corresponding self-belief, or vice versa. To address these gaps, the present study integrates variable- and person-centered methodologies. We first test whether self-efficacy mediates the grit&#x2013;PA relationship at the population level, and then employ latent profile analysis to uncover distinct psychological profiles and compare their physical activity engagement. The findings are expected to provide actionable insights for designing tailored, evidence-based interventions that promote active lifestyles in higher education settings.</p>
</sec>
<sec id="sec2">
<label>2</label>
<title>Theoretical framework and hypotheses</title>
<sec id="sec3">
<label>2.1</label>
<title>Grit and physical activity</title>
<p>Grit is a key positive personality trait that reflects the ability to sustain effort and passion toward long-term, meaningful goals (<xref ref-type="bibr" rid="ref49">Jiang et al., 2023</xref>). <xref ref-type="bibr" rid="ref32">Duckworth et al. (2021)</xref> conceptualized grit as consisting of two dimensions: consistency of interest and perseverance of effort. In the context of PA, these dimensions jointly serve as an internal motivational foundation that supports continuous participation (<xref ref-type="bibr" rid="ref73">Rosenkranz et al., 2023</xref>; <xref ref-type="bibr" rid="ref90">Wang et al., 2021</xref>). Consistency of interest refers to maintaining long-term enthusiasm for health or fitness improvement rather than engaging in short-lived or impulsive exercise (<xref ref-type="bibr" rid="ref85">Tross et al., 2024</xref>). Individuals with high consistency of interest can concentrate on their goals despite competing distractions or time pressures (<xref ref-type="bibr" rid="ref16">Buabang et al., 2025</xref>). Perseverance of effort captures the ability to remain determined and psychologically resilient in the face of challenges such as muscle fatigue, time constraints, plateaus in progress, or minor injuries (<xref ref-type="bibr" rid="ref12">Biggs et al., 2024</xref>).</p>
<p>Empirical evidence consistently supports a positive link between grit and PA (<xref ref-type="bibr" rid="ref21">Cormier et al., 2024</xref>). Studies of college athletes have found that individuals with higher grit demonstrate greater training involvement and better performance outcomes (<xref ref-type="bibr" rid="ref62">Moles et al., 2017</xref>). Research in general student populations also suggests that grit positively predicts both the frequency and duration of moderate-to-vigorous PA (<xref ref-type="bibr" rid="ref96">Yu et al., 2024</xref>). This relationship may be explained through self-regulation theory, as gritty individuals exhibit stronger self-control and are more capable of postponing immediate gratification for long-term health benefits (<xref ref-type="bibr" rid="ref29">Dorina et al., 2023</xref>). They tend to perceive discomfort or difficulty as a natural element of progress rather than as a reason to withdraw, which is linked to stronger adherence and persistence in exercise. The following hypothesis is thus proposed:</p>
<disp-quote>
<p><italic>Hypothesis 1 (H1)</italic>: Grit is positively associated with university students&#x2019; PA levels.</p>
</disp-quote>
</sec>
<sec id="sec4">
<label>2.2</label>
<title>The mediating role of self-efficacy</title>
<p>Although grit provides the motivational foundation for persistence, its influence on behavior operates through cognitive mechanisms (<xref ref-type="bibr" rid="ref51">Jiang et al., 2023</xref>). Self-efficacy, as proposed in Bandura&#x2019;s Social Cognitive Theory, represents the belief that one can effectively perform actions to achieve specific goals (<xref ref-type="bibr" rid="ref67">Pajares, 1996</xref>). It is a primary determinant of behavior initiation and maintenance (<xref ref-type="bibr" rid="ref69">Phillips and More, 2022</xref>; <xref ref-type="bibr" rid="ref40">Hennessy et al., 2020</xref>).</p>
<p>The present study posits that self-efficacy mediates the relationship between grit and PA, operating through two interrelated processes. First, grit facilitates the development of self-efficacy (<xref ref-type="bibr" rid="ref25">De La Cruz et al., 2021</xref>; <xref ref-type="bibr" rid="ref1">Alhadabi and Karpinski, 2020</xref>). Bandura identified mastery experiences as the most influential source of efficacy (<xref ref-type="bibr" rid="ref91">Welch and West, 1995</xref>). Students with high grit persist in their training efforts despite difficulties, which enables them to accumulate small but meaningful successes, such as improving their endurance or learning a new movement (<xref ref-type="bibr" rid="ref20">Coci&#x0107; et al., 2024</xref>). Each successful experience reinforces their confidence in their abilities and gradually strengthens their exercise-related self-efficacy (<xref ref-type="bibr" rid="ref89">Wang et al., 2022</xref>). Prior research in educational and occupational settings has confirmed that grit is positively associated with self-efficacy (<xref ref-type="bibr" rid="ref99">Zhou and Hou, 2025</xref>).</p>
<p>Second, self-efficacy acts as a direct motivator of behavior (<xref ref-type="bibr" rid="ref80">Shengyao et al., 2024</xref>). Individuals with strong self-efficacy are more likely to initiate and maintain PA (<xref ref-type="bibr" rid="ref94">Xie et al., 2025</xref>). They tend to set clear and challenging fitness goals, interpret fatigue or scheduling pressures as manageable, and recover faster from failure or frustration (<xref ref-type="bibr" rid="ref45">Hull and Vultaggio, 2019</xref>). Substantial evidence from health psychology supports self-efficacy as a robust predictor of PA engagement and persistence (<xref ref-type="bibr" rid="ref19">Chu et al., 2021</xref>; <xref ref-type="bibr" rid="ref59">Maio et al., 2020</xref>).</p>
<p>Together, these two pathways suggest that grit enhances self-efficacy through mastery experiences, and heightened self-efficacy, in turn, promotes sustained participation in exercise. The following hypothesis is thus proposed:</p>
<disp-quote>
<p><italic>Hypothesis 2 (H2)</italic>: Self-efficacy mediates the relationship between grit and PA.</p>
</disp-quote>
</sec>
<sec id="sec5">
<label>2.3</label>
<title>A person-centered perspective on grit and self-efficacy</title>
<p>Traditional variable-centered approaches, such as regression or mediation analyses, typically assume structural homogeneity within the population (<xref ref-type="bibr" rid="ref93">Woo et al., 2024</xref>). They focus on average relationships between variables, presuming that the exact underlying psychological mechanisms apply uniformly across individuals. However, this assumption often masks meaningful within-group variability and may overlook distinct subtypes of individuals who exhibit different psychological configurations (<xref ref-type="bibr" rid="ref44">Huang et al., 2025b</xref>). To capture this underlying heterogeneity, a person-centered perspective provides a complementary analytic framework.</p>
<p>The LPA enables researchers to identify unobserved subgroups within a population based on shared patterns across multiple continuous variables (<xref ref-type="bibr" rid="ref9">Beattie et al., 2022</xref>). In the context of this study, grit and self-efficacy are unlikely to have identical effects for all individuals. Instead, these traits may combine in diverse ways to form qualitatively distinct psychological profiles, each associated with unique patterns of exercise motivation and behavior. For example, some students may exhibit both high perseverance and strong self-belief, whereas others may be persistent but lack confidence, or confident but inconsistent in maintaining effort. These nuanced combinations cannot be adequately explained through variable-centered methods alone.</p>
<p>Theoretically, Self-Determination Theory (SDT) provides a valuable lens through which to understand this heterogeneity. SDT emphasizes that sustained behavioral engagement arises from the alignment of intrinsic motivation and perceived competence, a conceptually related concept to self-efficacy (<xref ref-type="bibr" rid="ref75">Ryan and Deci, 2000</xref>). When individuals possess both a strong internal drive (reflecting grit) and a robust sense of competence (reflecting self-efficacy), they are more likely to internalize health-related goals, experience autonomous motivation, and maintain consistent PA (<xref ref-type="bibr" rid="ref33">Dunston et al., 2020</xref>). Conversely, an imbalance between effort and confidence may be associated with motivational conflict and behavioral inconsistency.</p>
<p>Recent research employing person-centered approaches in positive psychology supports the value of this perspective. Studies have demonstrated that distinct psychological profiles based on constellations of positive traits, such as Resilience, optimism, and self-efficacy, are differentially associated with outcomes including academic achievement, emotional well-being, and adaptive coping (<xref ref-type="bibr" rid="ref76">Sabouripour et al., 2021</xref>; <xref ref-type="bibr" rid="ref34">Egan et al., 2021</xref>; <xref ref-type="bibr" rid="ref70">Popa-Velea et al., 2021</xref>; <xref ref-type="bibr" rid="ref95">Ye et al., 2024</xref>). Applying this framework to the present study, latent profile analysis is expected to reveal subgroups of university students characterized by distinct configurations of grit and self-efficacy. By examining how these profiles differ in their engagement in PA, the study aims to uncover the nuanced interplay between personal dispositions and health behavior, thereby extending current understanding beyond average effects. The following hypothesis is thus proposed:</p>
<disp-quote>
<p><italic>Hypothesis 3 (H3)</italic>: Distinct latent profiles of university students can be identified based on their levels of grit and self-efficacy.</p>
</disp-quote>
<disp-quote>
<p><italic>Hypothesis 4 (H4)</italic>: These latent profiles differ significantly in PA levels.</p>
</disp-quote>
</sec>
<sec id="sec6">
<label>2.4</label>
<title>Aims of the study</title>
<p>The present study aims to (<xref ref-type="bibr" rid="ref78">Santos et al., 2023</xref>) examine the mediating role of self-efficacy in the relationship between grit and PA among university students, and (<xref ref-type="bibr" rid="ref86">van Sluijs et al., 2021</xref>) identify distinct psychological profiles combining grit and self-efficacy to explore group differences in PA engagement. These dual approaches aim to advance theoretical understanding and provide practical insights for designing targeted health promotion interventions in higher education contexts.</p>
</sec>
</sec>
<sec sec-type="materials|methods" id="sec7">
<label>3</label>
<title>Materials and methods</title>
<sec id="sec8">
<label>3.1</label>
<title>Participants and procedure</title>
<p>This study employed a cross-sectional design using convenience sampling to recruit participants from multiple universities across China (see <xref ref-type="fig" rid="fig1">Figure 1</xref>). Data were collected online through Wenjuanxing<xref ref-type="fn" rid="fn0001"><sup>1</sup></xref>, a reliable and secure Chinese web-based survey platform. Survey invitations containing the participation link were distributed via university counselors, student organizations, and official online groups. Students could voluntarily access the questionnaire using either computers or mobile devices.</p>
<fig position="float" id="fig1">
<label>Figure 1</label>
<caption>
<p>Data collection flowchart.</p>
</caption>
<graphic xlink:href="fpsyg-16-1742211-g001.tif" mimetype="image" mime-subtype="tiff">
<alt-text content-type="machine-generated">Flowchart illustrating the study design and sampling process. It starts with sample size estimation and participant recruitment from 17 Chinese universities. Participants sign informed consent, complete an online questionnaire, and undergo automated data screening. Invalid data is excluded. Valid responses retained total 3,752. Data is encrypted and stored confidentially, with IRB approval.</alt-text>
</graphic>
</fig>
<p>Prior to data collection, <italic>a priori</italic> sample-size estimation was conducted using G&#x002A;Power 3.1. The calculation was based on a multiple regression model with two predictors, assuming a small-to-medium effect size (<italic>f</italic><sup>2</sup>&#x202F;=&#x202F;0.02), a significance level of <italic>&#x03B1;</italic>&#x202F;=&#x202F;0.05, and a statistical power of 0.95. The analysis indicated a minimum requirement of 776 participants to detect significant effects. Considering the study&#x2019;s potential for attrition due to missing or invalid data, the target sample size was set at more than 3,000 participants.</p>
<p>Data were collected between March 20 and April 20, 2025, from 17 universities located in Jiangxi, Sichuan, Hunan, Guizhou, and Guangdong. Participation was voluntary and uncompensated. Students were eligible for inclusion if they met the following criteria: (1) Full-time undergraduate or graduate enrollment at a Chinese university; (2) Age of 18&#x202F;years or older; (3) Ability to understand and complete the questionnaire in Chinese; (4) Willingness to provide informed consent and participate voluntarily. Exclusion criteria were applied as follows: (1) Duplicate submissions identified through an identical IP address or device information; (2) Incomplete or blank responses (missing more than 10% of items); (3) Abnormally short completion time (&#x003C;180&#x202F;s) or uniform responses indicating inattentive participation; (4) Self-reported history of diagnosed psychological disorders (e.g., major depression, generalized anxiety) that might substantially influence motivational or behavioral responses; (5) Presence of a known physical illness, injury, or medical condition that restricted the ability to engage in regular PA.</p>
<p>A total of 3,968 questionnaires were submitted. After data screening and exclusion of invalid cases based on the criteria above, 3,752 valid responses were retained for analysis, yielding an effective response rate of 94.6%. The final sample size exceeded the calculated requirement, providing sufficient statistical power for both variable-centered and person-centered analyses.</p>
<p>The data-collection process was standardized across all participating universities. Students accessed the survey via an online link distributed through institutional channels. Upon entering the survey webpage, they first read a detailed information statement describing the study objectives, procedures, estimated participation time, and confidentiality policies. Participation required explicit electronic consent before proceeding. The online questionnaire took approximately 10&#x2013;15&#x202F;min to complete. It included demographic items (age, gender, grade level, and geographic region), followed by validated instruments measuring grit, self-efficacy, and PA. To ensure response quality, attention-check items were embedded to detect careless answering. Each IP address and device could submit only once, and the platform automatically prevented multiple entries. The dataset was subsequently downloaded in encrypted form and stored on a password-protected institutional server accessible only to the research team.</p>
<p>All participants completed an informed consent form electronically prior to beginning the survey. The consent form emphasized that participation was entirely voluntary, data would be kept confidential, and participants could withdraw at any time without consequence. Sensitive questions about physical or psychological conditions were included only for screening purposes and were optional. The study protocol was reviewed and approved by the Institutional Ethics Committee of the corresponding author&#x2019;s university (IRB-JXNU-PEC-20240402), and all procedures complied with the ethical standards of the Declaration of Helsinki. No personally identifying information (such as name, student ID, or contact details) was collected.</p>
</sec>
<sec id="sec9">
<label>3.2</label>
<title>Measures</title>
<sec id="sec10">
<label>3.2.1</label>
<title>Grit</title>
<p>The present investigation utilized the Grit-S instrument for measuring grit. Initially constructed by <xref ref-type="bibr" rid="ref31">Duckworth and Quinn (2009)</xref>, this tool underwent subsequent modification by Hu to enhance its applicability for assessing persistence in athletic contexts within Chinese populations (<xref ref-type="bibr" rid="ref42">Hu et al., 2025</xref>). The instrument features a two-dimensional structure comprising eight items, each evaluated using a five-point response format, ranging from 1 (Does not describe me at all) to 5 (Describes me perfectly). Example item: I get excited about new exercise challenges and work hard to overcome them. Within our sample, the measure exhibited robust internal consistency, yielding a Cronbach&#x2019;s alpha value of 0.821, thereby confirming its psychometric adequacy.</p>
</sec>
<sec id="sec11">
<label>3.2.2</label>
<title>Physical activity</title>
<p>In this investigation, PA was measured using the PARS instrument, which underwent cultural adaptation by <xref ref-type="bibr" rid="ref55">Liang (1994)</xref>. This measurement tool examines three core components of PA: exercise intensity, time spent in activity, and occurrence frequency, employing a 5-point rating system for each component. Prior validation studies conducted by Yuan have confirmed the psychometric properties of this tool among Chinese participants (<xref ref-type="bibr" rid="ref98">Yuqing et al., 2025</xref>). Physical activity was quantified by multiplying exercise intensity by adjusted duration (Duration &#x2013; 1) and frequency, yielding a composite PA score. Higher values reflect elevated levels of PA participation. The instrument exhibited satisfactory internal reliability in our sample, yielding a Cronbach&#x2019;s alpha coefficient of 0.827.</p>
</sec>
<sec id="sec12">
<label>3.2.3</label>
<title>Self-efficacy</title>
<p>The self-efficacy scale employed in this research was initially developed by Jerusalem in 1995 (<xref ref-type="bibr" rid="ref47">Jerusalem and Schwarzer, 1995</xref>) and subsequently adapted by <xref ref-type="bibr" rid="ref42">Hu et al. (2025)</xref> for use with Chinese populations, demonstrating satisfactory reliability and validity. The instrument comprises 10 items forming a unidimensional construct, with a sample item being &#x201C;I am convinced that I can handle unexpected challenges during physical exercise.&#x201D; A 4-point Likert scale is utilized, ranging from 1 (completely disagree) to 4 (completely agree), where elevated scores represent higher levels of self-efficacy. The scale demonstrated good internal consistency in the present study, with a Cronbach&#x2019;s alpha of 0.826.</p>
</sec>
</sec>
<sec id="sec13">
<label>3.3</label>
<title>Data analysis</title>
<sec id="sec14">
<label>3.3.1</label>
<title>Variable-centered approach</title>
<p>All variable-centered procedures were executed using SPSS version 26.0. The analytic sequence comprised several stages designed to verify measurement quality, explore preliminary associations, and test the hypothesized mediation model. First, descriptive statistics (mean, standard deviation, skewness, and kurtosis) were computed for grit, self-efficacy, and PA to evaluate data distribution characteristics and the suitability for parametric testing. No substantial deviations from normality were detected. Next, the internal consistency of each instrument was examined using Cronbach&#x2019;s &#x03B1;. Reliability levels met established criteria, confirming that items measured their respective constructs consistently and could be used for hypothesis testing.</p>
<p>To identify potential covariates, group difference tests were conducted on participants&#x2019; demographic variables (e.g., gender, age, education, and place of birth). Demographic variables were compared using one-way ANOVA or independent-samples <italic>t</italic>-tests. Those variables demonstrating statistically significant differences in PA levels (<italic>p</italic>&#x202F;&#x003C;&#x202F;0.05) were subsequently included as control variables in the mediation analysis to account for their potential confounding influence.</p>
<p>Following this preliminary stage, Pearson correlation coefficients were calculated to examine the pairwise associations among grit, self-efficacy, and PA. These analyses provided an empirical basis for subsequent regression modeling.</p>
<p>Prior to mediation testing, potential multicollinearity among predictors was assessed. Variance Inflation Factor (VIF) and tolerance statistics confirmed acceptable independence among variables, ensuring model stability. The hypothesized mediational pathway was then tested using Hayes&#x2019;s PROCESS macro (Model 4) (<xref ref-type="bibr" rid="ref97">Yue et al., 2025</xref>). This approach relies on ordinary least-squares regression and provides both direct and indirect effect estimates. A bootstrapping procedure with 5,000 resamples was employed to generate bias-corrected 95% confidence intervals for the indirect effect. Control variables identified through variance or t-test analyses were entered to partial out their confounding impacts. This analytic strategy rigorously evaluated whether self-efficacy functioned as a link between grit and physical activity engagement within the student sample.</p>
</sec>
<sec id="sec15">
<label>3.3.2</label>
<title>Person-centered approach</title>
<p>To complement the variable-centered findings and capture individual-level heterogeneity, a person-centered analysis was conducted using Mplus version 8.3. The analysis applied LPA to identify distinct student subgroups characterized by unique constellations of grit and self-efficacy levels.</p>
<p>All LPA models were estimated via maximum-likelihood with robust standard errors (MLR). To maintain a parsimonious and interpretable structure, indicator means were freely estimated across profiles, their variances were constrained to equality, and inter-indicator covariances were fixed to zero. To ensure reproducible solutions and avoid local maxima, the estimation algorithm utilized 500 random initial starts and 100 final-stage optimizations.</p>
<p>Model adequacy was evaluated using multiple criteria: Akaike Information Criterion (AIC), Bayesian Information Criterion (BIC), and sample-size&#x2013;adjusted BIC (aBIC), with lower values indicating better relative fit (<xref ref-type="bibr" rid="ref43">Huang et al., 2025a</xref>). Entropy scores were inspected to gauge classification accuracy, and the Lo&#x2013;Mendell&#x2013;Rubin adjusted likelihood-ratio test (LMR) together with the Bootstrap Likelihood-Ratio Test (BLRT) were applied to test whether adding the profile significantly improved the model (<xref ref-type="bibr" rid="ref88">Wan et al., 2025</xref>). Selection of the final model balanced statistical fit, classification precision, and theoretical interpretability.</p>
<p>After determining the optimal number of profiles, students&#x2019; physical activity levels were compared across latent groups using a one-way ANOVA conducted in SPSS 26.0. When omnibus effects were significant, Bonferroni-adjusted <italic>post hoc</italic> tests were used to identify specific pairwise group differences.</p>
</sec>
</sec>
</sec>
<sec sec-type="results" id="sec16">
<label>4</label>
<title>Results</title>
<sec id="sec17">
<label>4.1</label>
<title>Common method bias analysis</title>
<p>Given that data for all study variables (Grit, Self-efficacy, and PA) were collected via self-report questionnaires at a single time point, we assessed the potential influence of common method variance using Harman&#x2019;s single-factor test. An unrotated exploratory factor analysis was conducted on all items. The results revealed that the first factor accounted for 30.695% of the total variance, falling well below the critical threshold of 40% (<xref ref-type="bibr" rid="ref97">Yue et al., 2025</xref>). This finding suggests that the observed common method bias in this study is within the acceptable range.</p>
</sec>
<sec id="sec18">
<label>4.2</label>
<title>Demographic information</title>
<p>The final sample comprised 3,752 university students (mean age&#x202F;=&#x202F;19). As shown in <xref ref-type="table" rid="tab1">Table 1</xref>, participants included 1,715 males (45.71%) and 2,037 females (54.29%). Most participants were undergraduates (<italic>n</italic>&#x202F;=&#x202F;3,184, 84.86%), followed by smaller proportions of master&#x2019;s students (<italic>n</italic>&#x202F;=&#x202F;501, 13.35%) and doctoral students (<italic>n</italic>&#x202F;=&#x202F;67, 1.79%). Urban and rural origins were relatively balanced, with 1,675 (44.64%) participants from urban areas and 2,077 (55.36%) from rural areas, respectively.</p>
<table-wrap position="float" id="tab1">
<label>Table 1</label>
<caption>
<p>Demographic characteristics and group differences among participants.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th/>
<th align="center" valign="top">
<italic>n</italic>
</th>
<th align="center" valign="top">proportion</th>
<th align="center" valign="top">Grit</th>
<th align="center" valign="top">PA</th>
<th align="center" valign="top">Self-efficacy</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" valign="middle">Gender</td>
<td/>
<td/>
<td align="char" valign="middle" char=".">18.848<sup>&#x002A;&#x002A;&#x002A;</sup></td>
<td align="char" valign="middle" char=".">17.249<sup>&#x002A;&#x002A;&#x002A;</sup></td>
<td align="char" valign="middle" char=".">9.212<sup>&#x002A;&#x002A;&#x002A;</sup></td>
</tr>
<tr>
<td align="left" valign="middle">Male</td>
<td align="center" valign="middle">1715</td>
<td align="char" valign="middle" char=".">45.71%</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Female</td>
<td align="center" valign="middle">2037</td>
<td align="char" valign="middle" char=".">54.29%</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Place of birth</td>
<td/>
<td/>
<td align="char" valign="middle" char=".">&#x2212;0.671</td>
<td align="char" valign="middle" char=".">&#x2212;1.778</td>
<td align="char" valign="middle" char=".">&#x2212;2.331<sup>&#x002A;</sup></td>
</tr>
<tr>
<td align="left" valign="middle">City</td>
<td align="center" valign="middle">1,675</td>
<td align="char" valign="middle" char=".">44.64%</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Rural</td>
<td align="center" valign="middle">2077</td>
<td align="char" valign="middle" char=".">55.36%</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Education</td>
<td/>
<td/>
<td align="char" valign="middle" char=".">3.120<sup>&#x002A;</sup></td>
<td align="char" valign="middle" char=".">2.465</td>
<td align="char" valign="middle" char=".">0.031</td>
</tr>
<tr>
<td align="left" valign="middle">Bachelor</td>
<td align="center" valign="middle">3,184</td>
<td align="char" valign="middle" char=".">84.86%</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Master</td>
<td align="center" valign="middle">501</td>
<td align="char" valign="middle" char=".">13.35%</td>
<td/>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Doctor</td>
<td align="center" valign="middle">67</td>
<td align="char" valign="middle" char=".">1.79%</td>
<td/>
<td/>
<td/>
</tr>
</tbody>
</table>
<table-wrap-foot>
<p>Unpaired <italic>t</italic>-test and ANOVA results (two-tailed test). <sup>&#x002A;</sup><italic>p</italic>&#x202F;&#x003C;&#x202F;0.05, <sup>&#x002A;&#x002A;&#x002A;</sup><italic>p</italic>&#x202F;&#x003C;&#x202F;0.001. Significance levels apply to subsequent tables unless otherwise noted.</p>
</table-wrap-foot>
</table-wrap>
<p>Gender exhibited significant associations with grit (<italic>t</italic>&#x202F;=&#x202F;18.848, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001), PA (<italic>t</italic>&#x202F;=&#x202F;17.249, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001), and self-efficacy (<italic>t</italic>&#x202F;=&#x202F;9.212, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001). Educational level was significantly related to grit (<italic>F</italic>&#x202F;=&#x202F;3.120, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.05), while place of birth showed a significant association only with self-efficacy (<italic>t</italic>&#x202F;=&#x202F;&#x2212;2.331, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.05).</p>
</sec>
<sec id="sec19">
<label>4.3</label>
<title>Correlation analysis</title>
<p>As illustrated in <xref ref-type="table" rid="tab2">Table 2</xref>, the descriptive statistics and bivariate correlations among the primary study variables are presented. Mean scores were 3.189 (SD&#x202F;=&#x202F;0.924) for grit, 2.602 (SD&#x202F;=&#x202F;0.672) for self-efficacy, and 34.240 (SD&#x202F;=&#x202F;31.855) for PA. Skewness and kurtosis values for all variables fell within acceptable ranges, indicating approximately normal distributions suitable for parametric analyses. Correlation analyses revealed significant positive associations among all variables. Grit demonstrated positive correlation with self-efficacy (<italic>r</italic>&#x202F;=&#x202F;0.542, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.01) and positive correlation with PA (<italic>r</italic>&#x202F;=&#x202F;0.419, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.01). Self-efficacy was also positively correlated with PA (<italic>r</italic>&#x202F;=&#x202F;0.326, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.01). These preliminary findings support the hypothesized relationships and provide an empirical foundation for subsequent mediation and latent profile analyses.</p>
<table-wrap position="float" id="tab2">
<label>Table 2</label>
<caption>
<p>Variable statistics and relationships in grit, physical activity, and self-efficacy.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th/>
<th align="center" valign="top">
<italic>M</italic>
</th>
<th align="center" valign="top">
<italic>SD</italic>
</th>
<th align="center" valign="top">Skewness</th>
<th align="center" valign="top">Kurtosis</th>
<th align="center" valign="top">Grit</th>
<th align="center" valign="top">Self-efficacy</th>
<th align="center" valign="top">PA</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" valign="middle">Grit</td>
<td align="char" valign="middle" char=".">3.189</td>
<td align="char" valign="middle" char=".">0.924</td>
<td align="char" valign="middle" char=".">&#x2212;0.248</td>
<td align="char" valign="middle" char=".">&#x2212;0.535</td>
<td align="center" valign="middle">1</td>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Self-efficacy</td>
<td align="char" valign="middle" char=".">2.602</td>
<td align="char" valign="middle" char=".">0.672</td>
<td align="char" valign="middle" char=".">&#x2212;0.099</td>
<td align="char" valign="middle" char=".">&#x2212;0.765</td>
<td align="center" valign="middle">0.542&#x002A;&#x002A;</td>
<td align="center" valign="middle">1</td>
<td/>
</tr>
<tr>
<td align="left" valign="middle">PA</td>
<td align="char" valign="middle" char=".">34.240</td>
<td align="char" valign="middle" char=".">31.855</td>
<td align="char" valign="middle" char=".">0.498</td>
<td align="char" valign="middle" char=".">&#x2212;1.149</td>
<td align="center" valign="middle">0.419&#x002A;&#x002A;</td>
<td align="center" valign="middle">0.326&#x002A;&#x002A;</td>
<td align="center" valign="middle">1</td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<p><sup>&#x002A;&#x002A;</sup><italic>p</italic>&#x202F;&#x003C;&#x202F;0.01.</p>
</table-wrap-foot>
</table-wrap>
</sec>
<sec id="sec20">
<label>4.4</label>
<title>The mediation analyses</title>
<p>Before testing the mediation model, multicollinearity diagnostics were conducted. The variance inflation factor (VIF&#x202F;=&#x202F;1.415) was well below the threshold of 5, indicating acceptable independence among predictor variables and confirming model stability. <xref ref-type="table" rid="tab3">Table 3</xref> presents the regression coefficients for each pathway in the mediation model.</p>
<table-wrap position="float" id="tab3">
<label>Table 3</label>
<caption>
<p>Mediation effect regression results.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th align="left" valign="top" rowspan="3">Variables</th>
<th align="center" valign="top" colspan="2">Model1</th>
<th align="center" valign="top" colspan="2">Model2</th>
<th align="center" valign="top" colspan="2">Model3</th>
</tr>
<tr>
<th align="center" valign="middle" colspan="2">(Self-efficacy)</th>
<th align="center" valign="middle" colspan="2">(PA)</th>
<th align="center" valign="middle" colspan="2">(PA)</th>
</tr>
<tr>
<th align="center" valign="middle">
<italic>&#x03B2;</italic>
</th>
<th align="center" valign="middle">
<italic>t</italic>
</th>
<th align="center" valign="middle">
<italic>&#x03B2;</italic>
</th>
<th align="center" valign="middle">
<italic>t</italic>
</th>
<th align="center" valign="middle">
<italic>&#x03B2;</italic>
</th>
<th align="center" valign="middle">
<italic>t</italic>
</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" valign="middle">Grit</td>
<td align="center" valign="middle">0.545<sup>&#x002A;&#x002A;&#x002A;</sup></td>
<td align="center" valign="middle">37.956</td>
<td align="center" valign="middle">0.293<sup>&#x002A;&#x002A;&#x002A;</sup></td>
<td align="center" valign="middle">16.414</td>
<td align="center" valign="middle">0.370<sup>&#x002A;&#x002A;&#x002A;</sup></td>
<td align="center" valign="middle">24.195</td>
</tr>
<tr>
<td align="left" valign="middle">Self-efficacy</td>
<td/>
<td/>
<td align="center" valign="middle">0.142<sup>&#x002A;&#x002A;&#x002A;</sup></td>
<td align="center" valign="middle">8.216</td>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Gender</td>
<td align="center" valign="middle">0.025</td>
<td align="center" valign="middle">0.858</td>
<td align="center" valign="middle">&#x2212;0.330<sup>&#x002A;&#x002A;&#x002A;</sup></td>
<td align="center" valign="middle">&#x2212;10.842</td>
<td align="center" valign="middle">&#x2212;0.327</td>
<td align="center" valign="middle">&#x2212;10.634</td>
</tr>
<tr>
<td align="left" valign="middle">Education</td>
<td align="center" valign="middle">&#x2212;0.04</td>
<td align="center" valign="middle">&#x2212;0.541</td>
<td align="center" valign="middle">0.005</td>
<td align="center" valign="middle">0.064</td>
<td align="center" valign="middle">&#x2212;0.001</td>
<td align="center" valign="middle">&#x2212;0.008</td>
</tr>
<tr>
<td align="left" valign="middle">Place of birth</td>
<td align="center" valign="middle">0.064<sup>&#x002A;</sup></td>
<td align="center" valign="middle">2.309</td>
<td align="center" valign="middle">0.033</td>
<td align="center" valign="middle">1.139</td>
<td align="center" valign="middle">0.042</td>
<td align="center" valign="middle">1.437</td>
</tr>
<tr>
<td align="left" valign="middle">Age</td>
<td align="center" valign="middle">0.002</td>
<td align="center" valign="middle">0.139</td>
<td align="center" valign="middle">0.006</td>
<td align="center" valign="middle">0.378</td>
<td align="center" valign="middle">0.006</td>
<td align="center" valign="middle">0.393</td>
</tr>
<tr>
<td align="left" valign="middle"><italic>R</italic>
<sup>2</sup>
</td>
<td align="center" valign="middle">0.295</td>
<td/>
<td align="center" valign="middle">0.214</td>
<td/>
<td align="center" valign="middle">0.200</td>
<td/>
</tr>
<tr>
<td align="left" valign="middle"><italic>F</italic></td>
<td align="center" valign="middle">313.019<sup>&#x002A;&#x002A;&#x002A;</sup></td>
<td/>
<td align="center" valign="middle">170.113<sup>&#x002A;&#x002A;&#x002A;</sup></td>
<td/>
<td align="center" valign="middle">187.308<sup>&#x002A;&#x002A;&#x002A;</sup></td>
<td/>
</tr>
</tbody>
</table>
<table-wrap-foot>
<p><sup>&#x002A;&#x002A;&#x002A;</sup><italic>p</italic>&#x202F;&#x003C;&#x202F;0.001.</p>
</table-wrap-foot>
</table-wrap>
<p>As shown in Model 1, grit was significantly associated with self-efficacy (<italic>&#x03B2;</italic>&#x202F;=&#x202F;0.545, <italic>t</italic>&#x202F;=&#x202F;37.956, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001). Model 2 demonstrated that both grit (<italic>&#x03B2;</italic>&#x202F;=&#x202F;0.293, <italic>t</italic>&#x202F;=&#x202F;16.414, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001) and self-efficacy (<italic>&#x03B2;</italic>&#x202F;=&#x202F;0.142, <italic>t</italic>&#x202F;=&#x202F;8.216, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001) were independently associated with PA. In Model 3, when self-efficacy was excluded, grit alone was associated with PA (<italic>&#x03B2;</italic>&#x202F;=&#x202F;0.370, <italic>t</italic>&#x202F;=&#x202F;24.195, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001).</p>
<p><xref ref-type="table" rid="tab4">Table 4</xref> summarizes the decomposition of total, direct, and indirect effects. The total effect of grit on PA was significant (Effect&#x202F;=&#x202F;0.370, 95% CI [0.340, 0.400]). After controlling for self-efficacy, the direct effect remained significant (Effect&#x202F;=&#x202F;0.293, 95% CI [0.258, 0.328]), accounting for 79% of the total effect. Critically, the indirect effect through self-efficacy was also significant (Effect&#x202F;=&#x202F;0.077, 95% CI [0.058, 0.097]), representing 21% of the total effect. The bootstrap confidence interval excluded zero, confirming partial mediation. These findings indicate that self-efficacy serves as a significant mediator in the relationship between grit and PA, supporting Hypothesis 1 and 2. The mediation pathway is illustrated in <xref ref-type="fig" rid="fig2">Figure 2</xref>.</p>
<table-wrap position="float" id="tab4">
<label>Table 4</label>
<caption>
<p>Mediating effects of self-efficacy between grit and physical activity.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th rowspan="2"/>
<th align="center" valign="top" rowspan="2">Effect</th>
<th align="center" valign="top" rowspan="2">Boost SE</th>
<th align="center" valign="top" colspan="2">95%CI</th>
<th align="center" valign="top" rowspan="2">Percent mediated</th>
</tr>
<tr>
<th align="center" valign="top" colspan="2">LLCI ULCI</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" valign="middle">Total</td>
<td align="char" valign="middle" char=".">0.370</td>
<td align="char" valign="middle" char=".">0.015</td>
<td align="char" valign="middle" char=".">0.340</td>
<td align="char" valign="middle" char=".">0.400</td>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Grit&#x202F;&#x2192;&#x202F;PA</td>
<td align="char" valign="middle" char=".">0.293</td>
<td align="char" valign="middle" char=".">0.018</td>
<td align="char" valign="middle" char=".">0.258</td>
<td align="char" valign="middle" char=".">0.328</td>
<td align="center" valign="middle">79%</td>
</tr>
<tr>
<td align="left" valign="middle">Grit&#x202F;&#x2192;&#x202F;Self-efficacy &#x2192;&#x202F;PA</td>
<td align="char" valign="middle" char=".">0.077</td>
<td align="char" valign="middle" char=".">0.010</td>
<td align="char" valign="middle" char=".">0.058</td>
<td align="char" valign="middle" char=".">0.097</td>
<td align="center" valign="middle">21%</td>
</tr>
</tbody>
</table>
</table-wrap>
<fig position="float" id="fig2">
<label>Figure 2</label>
<caption>
<p>Mediation effect diagram. &#x002A;&#x002A;&#x002A;<italic>p</italic> &#x003C; 0.001.</p>
</caption>
<graphic xlink:href="fpsyg-16-1742211-g002.tif" mimetype="image" mime-subtype="tiff">
<alt-text content-type="machine-generated">Diagram showing relationships among three variables. Grit points to Self-efficacy with a path coefficient of 0.545, Self-efficacy points to Physical Activity with 0.142, and Grit directly influences Physical Activity with 0.293. Each path is statistically significant, indicated by three asterisks.</alt-text>
</graphic>
</fig>
</sec>
<sec id="sec21">
<label>4.5</label>
<title>Latent profile analysis</title>
<p>LPA was performed to identify student subgroups based on their configurations of grit and self-efficacy. Models with one to five profiles were systematically compared using Mplus 8.3. <xref ref-type="table" rid="tab5">Table 5</xref> displays the fit indices.</p>
<table-wrap position="float" id="tab5">
<label>Table 5</label>
<caption>
<p>Latent profile analysis models.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th align="left" valign="top">Model</th>
<th align="center" valign="top">AIC</th>
<th align="center" valign="top">BIC</th>
<th align="center" valign="top">aBIC</th>
<th align="center" valign="top">LMR(<italic>P</italic>)</th>
<th align="center" valign="top">BLRT(<italic>P</italic>)</th>
<th align="center" valign="top">Entropy</th>
<th align="center" valign="top">Categorical probability %</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" valign="middle">Class1</td>
<td align="char" valign="middle" char=".">17730.360</td>
<td align="char" valign="middle" char=".">17755.280</td>
<td align="char" valign="middle" char=".">17742.570</td>
<td/>
<td/>
<td/>
<td/>
</tr>
<tr>
<td align="left" valign="middle">Class2</td>
<td align="char" valign="middle" char=".">16763.706</td>
<td align="char" valign="middle" char=".">16807.316</td>
<td align="char" valign="middle" char=".">16785.074</td>
<td align="char" valign="middle" char=".">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">0.729</td>
<td align="center" valign="middle">16.68%/83.32%</td>
</tr>
<tr>
<td align="left" valign="middle">Class3</td>
<td align="char" valign="middle" char=".">15311.671</td>
<td align="char" valign="middle" char=".">15373.972</td>
<td align="char" valign="middle" char=".">15342.197</td>
<td align="char" valign="middle" char=".">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">0.924</td>
<td align="center" valign="middle">16.12%/55.84%/28.04%</td>
</tr>
<tr>
<td align="left" valign="middle">Class4</td>
<td align="char" valign="middle" char=".">14911.268</td>
<td align="char" valign="middle" char=".">14992.258</td>
<td align="char" valign="middle" char=".">14950.951</td>
<td align="char" valign="middle" char=".">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">0.922</td>
<td align="center" valign="middle">10.18%/27.82%/5.68%/56.32%</td>
</tr>
<tr>
<td align="left" valign="middle">Class5</td>
<td align="char" valign="middle" char=".">14701.067</td>
<td align="char" valign="middle" char=".">14800.748</td>
<td align="char" valign="middle" char=".">14749.908</td>
<td align="char" valign="middle" char=".">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">0.830</td>
<td align="center" valign="middle">4.69%/10.13%/28.94%/26.76%/29.48%</td>
</tr>
</tbody>
</table>
</table-wrap>
<p>While AIC, BIC, and aBIC decreased continuously across models, the three-profile solution demonstrated optimal entropy (0.924), indicating superior classification precision. Both LMR and BLRT tests were found to be significant for all models. Although four- and five-profile solutions showed a favorable statistical fit, they produced extremely small subgroups (4.69 and 5.68%), which limited their interpretability. Considering statistical adequacy, classification accuracy, and theoretical clarity, the three-profile model was retained as the most suitable.</p>
<p><xref ref-type="fig" rid="fig3">Figure 3</xref> presents three distinct profiles with pronounced characteristics: Profile 1 (<italic>n</italic>&#x202F;=&#x202F;605, 16.12%) exhibited low grit and self-efficacy, labeled &#x201C;Limited Self-Regulation&#x201D;; Profile 2 (<italic>n</italic>&#x202F;=&#x202F;2,095, 55.84%) showed moderate levels on both dimensions, termed &#x201C;Moderate Self-Regulation&#x201D;; Profile 3 (<italic>n</italic>&#x202F;=&#x202F;1,052, 28.04%) demonstrated high grit and self-efficacy, designated &#x201C;Strong Self-Regulation.&#x201D; These results confirm Hypothesis 3, revealing heterogeneous psychological configurations among university students.</p>
<fig position="float" id="fig3">
<label>Figure 3</label>
<caption>
<p>Latent profiles of grit with self-efficacy.</p>
</caption>
<graphic xlink:href="fpsyg-16-1742211-g003.tif" mimetype="image" mime-subtype="tiff">
<alt-text content-type="machine-generated">Bar chart comparing value means for grit and self-efficacy across three self-regulation levels: limited (orange), moderate (green), and strong (blue).</alt-text>
</graphic>
</fig>
</sec>
<sec id="sec22">
<label>4.6</label>
<title>Effect of latent profile classification</title>
<p>One-way ANOVA examined PA differences across the three profiles (see <xref ref-type="table" rid="tab6">Table 6</xref>). Significant differences emerged (<italic>F</italic>&#x202F;=&#x202F;225.108, <italic>p</italic>&#x202F;&#x003C;&#x202F;0.001, <italic>&#x03B7;</italic><sup>2</sup>&#x202F;=&#x202F;0.107), with profile membership accounting for 10.7% of variance in PA. As shown in <xref ref-type="table" rid="tab6">Table 6</xref>, the Strong Self-Regulation profile reported the highest activity levels (<italic>M</italic>&#x202F;=&#x202F;49.031, SD&#x202F;=&#x202F;29.587), followed by Moderate Self-Regulation (<italic>M</italic>&#x202F;=&#x202F;31.555, SD&#x202F;=&#x202F;31.459), and Limited Self-Regulation (<italic>M</italic>&#x202F;=&#x202F;17.835, SD&#x202F;=&#x202F;25.922).</p>
<table-wrap position="float" id="tab6">
<label>Table 6</label>
<caption>
<p>Group differences across latent profiles.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th align="left" valign="top">Variable</th>
<th align="center" valign="top">A1(605)</th>
<th align="center" valign="top">A2(2095)</th>
<th align="center" valign="top">A3(1052)</th>
<th align="center" valign="top">
<italic>&#x03B7;</italic>
<sup>2</sup>
</th>
<th align="center" valign="top">
<italic>F</italic>
</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" valign="middle">PA</td>
<td align="left" valign="middle">17.835 &#x00B1; 25.922</td>
<td align="left" valign="middle">31.555 &#x00B1; 31.459</td>
<td align="left" valign="middle">49.031 &#x00B1; 29.587</td>
<td align="char" valign="middle" char=".">0.107</td>
<td align="char" valign="middle" char=".">225.108<sup>&#x002A;&#x002A;&#x002A;</sup></td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<p>A1 (Limited Self-Regulation), A2 (Moderate Self-Regulation), A3 (Strong Self-Regulation). &#x002A;&#x002A;&#x002A;<italic>p</italic> &#x003C; 0.001.</p>
</table-wrap-foot>
</table-wrap>
<p>Bonferroni post hoc tests revealed all pairwise differences were significant (<italic>p</italic>&#x202F;&#x003C;&#x202F;0.001). The pattern showed A3&#x202F;&#x003E;&#x202F;A2&#x202F;&#x003E;&#x202F;A1, confirming that distinct grit&#x2013;self-efficacy configurations correspond to differential PA engagement (see <xref ref-type="table" rid="tab7">Table 7</xref>). These findings support Hypothesis 4, demonstrating that distinct configurations of grit and self-efficacy are systematically associated with differential patterns of PA engagement among university students.</p>
<table-wrap position="float" id="tab7">
<label>Table 7</label>
<caption>
<p>Multiple comparisons.</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th align="left" valign="top">Bonferroni</th>
<th align="left" valign="top" rowspan="2">(I) Class</th>
<th align="left" valign="top" rowspan="2">(J) Class</th>
<th align="center" valign="top" rowspan="2">Mean difference (I-J)</th>
<th align="center" valign="top" rowspan="2">STD. error</th>
<th align="center" valign="top" rowspan="2">Sig.</th>
<th align="center" valign="top" colspan="2">95% CI</th>
<th align="left" valign="top" rowspan="2">Outcome</th>
</tr>
<tr>
<th align="left" valign="top">Dependent variable</th>
<th align="center" valign="top">Lower bound</th>
<th align="center" valign="top">Upper bound</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" valign="middle" rowspan="6">PA</td>
<td align="left" valign="middle" rowspan="2">A1</td>
<td align="left" valign="middle">A2</td>
<td align="char" valign="middle" char=".">&#x2212;13.720<sup>&#x002A;</sup></td>
<td align="char" valign="middle" char=".">1.390</td>
<td align="center" valign="middle">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">&#x2212;17.048</td>
<td align="char" valign="middle" char=".">&#x2212;10.392</td>
<td/>
</tr>
<tr>
<td align="left" valign="middle">A3</td>
<td align="char" valign="middle" char=".">&#x2212;31.197<sup>&#x002A;</sup></td>
<td align="char" valign="middle" char=".">1.536</td>
<td align="center" valign="middle">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">&#x2212;34.876</td>
<td align="char" valign="middle" char=".">&#x2212;27.517</td>
<td/>
</tr>
<tr>
<td align="left" valign="middle" rowspan="2">A2</td>
<td align="left" valign="middle">A1</td>
<td align="char" valign="middle" char=".">13.720<sup>&#x002A;</sup></td>
<td align="char" valign="middle" char=".">1.390</td>
<td align="center" valign="middle">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">10.392</td>
<td align="char" valign="middle" char=".">17.048</td>
<td/>
</tr>
<tr>
<td align="left" valign="middle">A3</td>
<td align="char" valign="middle" char=".">&#x2212;17.477<sup>&#x002A;</sup></td>
<td align="char" valign="middle" char=".">1.138</td>
<td align="center" valign="middle">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">&#x2212;20.202</td>
<td align="char" valign="middle" char=".">&#x2212;14.752</td>
<td/>
</tr>
<tr>
<td align="left" valign="middle" rowspan="2">A3</td>
<td align="left" valign="middle">A1</td>
<td align="char" valign="middle" char=".">31.197<sup>&#x002A;</sup></td>
<td align="char" valign="middle" char=".">1.536</td>
<td align="center" valign="middle">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">27.517</td>
<td align="char" valign="middle" char=".">34.875</td>
<td/>
</tr>
<tr>
<td align="left" valign="middle">A2</td>
<td align="char" valign="middle" char=".">17.477<sup>&#x002A;</sup></td>
<td align="char" valign="middle" char=".">1.138</td>
<td align="center" valign="middle">&#x003C;0.001</td>
<td align="char" valign="middle" char=".">14.752</td>
<td align="char" valign="middle" char=".">20.202</td>
<td align="left" valign="middle">A3&#x202F;&#x003E;&#x202F;A2&#x202F;&#x003E;&#x202F;A1</td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<p><sup>&#x002A;</sup><italic>p</italic>&#x202F;&#x003C;&#x202F;0.05.</p>
</table-wrap-foot>
</table-wrap>
</sec>
</sec>
<sec sec-type="discussion" id="sec23">
<label>5</label>
<title>Discussion</title>
<sec id="sec24">
<label>5.1</label>
<title>The mediating role of self-efficacy</title>
<p>This study found that grit was positively associated with PA and that self-efficacy significantly mediated this relationship. In other words, students higher in grit tended to be more active, mainly because they felt more capable of initiating and sustaining exercise.</p>
<p>These findings align with prior research, which shows that grit is related to health-promoting behaviors and that self-efficacy robustly associates with exercise initiation and adherence (<xref ref-type="bibr" rid="ref39">Hartzel et al., 2021</xref>; <xref ref-type="bibr" rid="ref57">Liu et al., 2023</xref>). Similar mediation patterns have been reported between other positive traits (e.g., Resilience, optimism) and PA via self-efficacy, suggesting a consistent pathway across motivational constructs (<xref ref-type="bibr" rid="ref65">Neumann et al., 2021</xref>; <xref ref-type="bibr" rid="ref50">Jiang et al., 2025</xref>; <xref ref-type="bibr" rid="ref68">Peng et al., 2025</xref>). Several mechanisms may explain the mediation. First, gritty students are more likely to persist through early challenges, accumulating mastery experiences that directly strengthen efficacy beliefs&#x2014;Bandura&#x2019;s most potent source of self-efficacy (<xref ref-type="bibr" rid="ref1">Alhadabi and Karpinski, 2020</xref>; <xref ref-type="bibr" rid="ref53">Kleppang et al., 2023</xref>). Second, higher efficacy reduces perceived barriers (such as time, fatigue, and setbacks), making effort more efficient and goal pursuit more autonomous (<xref ref-type="bibr" rid="ref7">Bandura, 1982</xref>). Third, within Self-Determination Theory, the combination of sustained effort (grit) and perceived competence (self-efficacy) promotes the internalization of health goals, thereby stabilizing exercise behavior over time (<xref ref-type="bibr" rid="ref26">Deci and Ryan, 2008</xref>).</p>
<p>Theoretical implications are twofold: grit provides motivational stamina, but behavior change crystallizes through efficacy-based self-regulation; thus, perseverance without perceived capability may not translate into action. Practically, interventions should pair grit-building (long-term goal framing, reflective persistence training) with efficacy-enhancing strategies (graded mastery tasks, credible peer modeling, specific feedback, and reappraisal of physiological cues). Targeting both dispositions can convert determination into durable activity habits, offering a scalable route for university health programs to increase PA participation.</p>
</sec>
<sec id="sec25">
<label>5.2</label>
<title>The different latent profiles</title>
<p>A significant contribution of the present study is the application of a person-centered methodology, which extends beyond the population-level averages typically found in variable-centered models. In confirming Hypothesis 3, our LPA identified three statistically distinct and theoretically coherent profiles based on the interplay of grit and self-efficacy: &#x201C;Strong Self-Regulation,&#x201D; &#x201C;Moderate Self-Regulation,&#x201D; and &#x201C;Limited Self-Regulation.&#x201D; This finding substantiates the premise that individuals possess heterogeneous psychological configurations rather than adhering to a single motivational pathway.</p>
<p>The &#x201C;Strong Self-Regulation&#x201D; profile (Profile 3, 28.04% of the sample) represents an optimal psychological constellation for behavioral pursuit. Individuals in this group possess both high perseverance of effort (grit) and robust confidence in their capabilities (self-efficacy). This synergistic combination aligns with motivational frameworks, such as Self-Determination Theory, which posits that sustained engagement is fostered by the alignment of internal drive and perceived competence (<xref ref-type="bibr" rid="ref71">Rigby and Ryan, 2018</xref>). High grit provides the Resilience to persist through the inherent discomforts and logistical barriers of exercise (e.g., fatigue, time constraints), while high self-efficacy provides the cognitive assurance needed to initiate action, set challenging goals, and manage setbacks effectively (<xref ref-type="bibr" rid="ref96">Yu et al., 2024</xref>).</p>
<p>Conversely, the &#x201C;Limited Self-Regulation&#x201D; profile (Profile 1, 16.12%) characterizes a psychologically vulnerable subgroup. These students are encumbered by a dual deficit: low perseverance for long-term goals and low confidence in their ability to execute health-related actions. This combination likely creates a pernicious cycle of motivational failure (<xref ref-type="bibr" rid="ref25">De La Cruz et al., 2021</xref>). Low self-efficacy inhibits behavioral initiation, while low grit ensures that any attempts are quickly abandoned upon facing difficulty, thus preventing the accumulation of mastery experiences necessary to build self-efficacy in the first place. This profile signifies a state of amotivation or motivational conflict that variable-centered approaches would fail to isolate.</p>
<p>Finally, the &#x201C;Moderate Self-Regulation&#x201D; profile (Profile 2) was the largest subgroup, encompassing over half of the university students sampled (55.84%). This finding is critical, as it suggests that the &#x201C;average&#x201D; student possesses a functional, yet suboptimal, motivational architecture. While not entirely lacking in grit or confidence, their moderate levels may render them inconsistent in their health pursuits, as they tend to succeed under favorable conditions but struggle to maintain activity when faced with significant academic or social pressures (<xref ref-type="bibr" rid="ref54">Li et al., 2024</xref>). The identification of this large, intermediate group is paramount for public health, as they represent a primary target for broad-based interventions aimed at shifting motivational levels from adequate to optimal.</p>
</sec>
<sec id="sec26">
<label>5.3</label>
<title>Effect of latent profile</title>
<p>Our analysis provided robust support for Hypothesis 4, demonstrating that these distinct psychological profiles are associated with significant, real-world differences in health behavior. The findings revealed a clear, hierarchical pattern in PA engagement, with the &#x201C;Strong Self-Regulation&#x201D; group reporting the highest levels, followed by the &#x201C;Moderate&#x201D; group, and finally the &#x201C;Limited&#x201D; group (A3&#x202F;&#x003E;&#x202F;A2&#x202F;&#x003E;&#x202F;A1).</p>
<p>The behavioral outcomes of the &#x201C;Strong Self-Regulation&#x201D; group (<italic>M</italic>&#x202F;=&#x202F;49.031) align with theoretical expectations. When individuals concurrently possess both the motivational &#x201C;engine&#x201D; (grit) and the cognitive &#x201C;steering&#x201D; (self-efficacy), they appear maximally equipped to navigate the path from intention to action (<xref ref-type="bibr" rid="ref72">Rodrigues et al., 2023</xref>). This finding empirically highlights that it is the combination of high perseverance and high confidence, rather than either trait in isolation, that is associated with the most adaptive behavioral outcomes in this sample (<xref ref-type="bibr" rid="ref24">Datu et al., 2022</xref>).</p>
<p>The starkly low PA levels of the &#x201C;Limited Self-Regulation&#x201D; group (<italic>M</italic>&#x202F;=&#x202F;17.835) identify them as a high-risk population in terms of behavioral deficits. Their minimal engagement in PA is the logical behavioral correlate of their psychological profile, which lacks both the requisite drive and perceived capability (<xref ref-type="bibr" rid="ref8">Barbosa et al., 2024</xref>). This group exemplifies a potential failure point in health motivation, characterized by a dual deficit that corresponds to the lowest levels of health behavior.</p>
<p>The &#x201C;Moderate Self-Regulation&#x201D; profile, constituting the majority of the sample (55.84%), warrants critical theoretical attention. While this group exhibits significantly higher physical activity levels (<italic>M</italic> =&#x202F;31.555) compared to the &#x201C;Limited&#x201D; profile, their engagement remains sub-optimal relative to the &#x201C;Strong&#x201D; profile. Theoretically, this configuration can be interpreted through Social Cognitive Theory as a state of context-dependent efficacy (<xref ref-type="bibr" rid="ref46">Islam et al., 2023</xref>). These students likely possess sufficient self-efficacy to initiate physical tasks under normal conditions but lack the resilience, a core component of grit, required to maintain these behaviors when facing academic stressors or fatigue (<xref ref-type="bibr" rid="ref48">Jiang et al., 2025</xref>). Unlike the &#x201C;Strong&#x201D; profile, their efficacy beliefs are not robust enough to serve as a buffer against external barriers (<xref ref-type="bibr" rid="ref66">Ntoumanis et al., 2020</xref>), leading to a &#x201C;competent but inconsistent&#x201D; behavioral pattern (<xref ref-type="bibr" rid="ref3">Antunes et al., 2021</xref>). This finding suggests that the primary challenge in university health promotion is not merely initiating behavior among the disengaged, but facilitating the transition of this &#x201C;competent but inconsistent&#x201D; majority from external regulation to autonomous persistence.</p>
<p>In sum, the integration of person-centered analysis provides a critical layer of granularity. While our mediation model established that self-efficacy is a key pathway linking grit to action, the LPA results reveal who within this population is most and least equipped for this pathway at this point. This dual-method approach offers a more comprehensive and granular understanding of the motivational architecture underlying PA, moving beyond a single, monolithic model to reveal distinct subgroups whose psychological configurations are differentially associated with health behavior.</p>
</sec>
<sec id="sec27">
<label>5.4</label>
<title>Practical implications</title>
<p>The results suggest clear actions for university health initiatives. First, the finding that grit&#x2019;s link to PA is channeled through self-efficacy is a key insight. It implies that programs should focus less on promoting abstract persistence and more on building tangible exercise confidence. This can be achieved through practical strategies, such as setting achievable goals or providing structured mastery experiences. Second, our profiles reveal that a uniform intervention strategy is likely to be ineffective, as students possess very different motivational makeups. Those in the &#x201C;Limited Regulation&#x201D; profile require foundational support for both their low confidence and persistence. The large &#x201C;Moderate Regulation&#x201D; group, representing the &#x201C;average&#x201D; student, is a prime target for broad initiatives aimed at making activity more accessible and habitual. Finally, students in the &#x201C;Strong Regulation&#x201D; group are not an intervention target but a potential resource; they could be engaged as peer leaders. Recognizing and responding to this student heterogeneity, rather than assuming a single pathway, is essential for improving campus-wide PA. These recommendations warrant testing in longitudinal and randomized trials.</p>
</sec>
<sec id="sec28">
<label>5.5</label>
<title>Strengths and limitations</title>
<p>This study possesses several methodological strengths that contribute to the literature. A primary strength is the innovative adoption of a dual-method approach. By integrating a variable-centered (SEM) mediation analysis with a person-centered (LPA) approach, we were able to not only elucidate the pathway (i.e., the mediating role of self-efficacy) but also to identify the distinct profiles of individuals for whom these dynamics operate differently. This mixed-method design provides a more granular and ecologically valid understanding than either approach in isolation, moving beyond population-level averages. Furthermore, the large sample size (<italic>N</italic>&#x202F;=&#x202F;3,752) lends considerable statistical power to our analyses, thereby enhancing the reliability of both the mediation model and the latent profile solution. Finally, by applying this dual framework to the under-investigated triad of grit, self-efficacy, and PA, this study offers novel insights into the heterogeneous motivational architectures within the critical population of university students.</p>
<p>Nevertheless, the findings must be interpreted in light of several limitations. The most significant constraint is the cross-sectional nature of the data. This design, while helpful in identifying associations, fundamentally precludes any inferences of causality or directionality. Although our mediation model is theoretically grounded (from grit to PA through self-efficacy), we cannot empirically rule out alternative or reciprocal relationships (e.g., PA engagement building self-efficacy, which in turn fosters grit).</p>
<p>Second, our reliance on self-report questionnaires for all variables introduces potential measurement biases. Specifically, PA data is susceptible to social desirability and Recall bias, with individuals often overestimating the duration and intensity of their activity. Future research would benefit from incorporating objective measures, such as accelerometers, to validate the PA outcomes.</p>
<p>Third, the generalizability of the findings is constrained. Our sample was drawn exclusively from university students in China. While this provides valuable insights into a large and important demographic, the specific motivational profiles and their prevalence may not be transferable to other populations, such as adolescents, working adults, or students in different cultural contexts. The characteristics of the identified profiles are inherently sample-dependent.</p>
<p>Finally, while our LPA included the core constructs of grit and self-efficacy, it is plausible that other psychological or social variables (e.g., perceived social support, barriers to exercise, or autonomous motivation) could contribute to more nuanced or different profile solutions. Future person-centered studies could incorporate a wider array of variables to capture a more comprehensive picture of students&#x2019; motivational constellations.</p>
</sec>
</sec>
<sec sec-type="conclusions" id="sec29">
<label>6</label>
<title>Conclusion</title>
<p>This study, adopting a dual-method approach that integrated variable-centered and person-centered analyses, offers novel insights into the relationship between grit and PA among university students. From a variable-centered perspective, our findings confirmed the critical mediating role of self-efficacy in the pathway linking grit to PA. More importantly, the person-centered Latent Profile Analysis demonstrated that students are not motivationally homogenous. Instead, they can be classified into three qualitatively distinct profiles&#x2014;&#x201C;Strong Self-Regulation,&#x201D; &#x201C;Moderate Self-Regulation,&#x201D; and &#x201C;Limited Self-Regulation&#x201D;&#x2014;which exhibited significant hierarchical differences in their PA engagement.</p>
<p>Taken together, our findings underscore that promoting health behaviors requires attention not only to this Grit-Self-efficacy-PA psychological pathway but also to the people (the heterogeneity of the student population). The results indicate that a combination of high grit and high self-efficacy is associated with the most adaptive health outcomes, providing an empirical basis to move beyond one-size-fits-all interventions toward more precise, personalized strategies tailored to students&#x2019; distinct motivational configurations. Crucially, the identification of the dominant &#x201C;Moderate Self-Regulation&#x201D; profile reveals that the decline in university physical activity is largely driven by a failure to sustain motivation among the majority, rather than a total lack of capability. Therefore, interventions should prioritize converting this &#x201C;potential&#x201D; group into active participants by strengthening their grit, rather than focusing solely on the most disengaged populations.</p>
</sec>
</body>
<back>
<sec sec-type="data-availability" id="sec30">
<title>Data availability statement</title>
<p>The original contributions presented in the study are included in the article/supplementary material, further inquiries can be directed to the corresponding authors.</p>
</sec>
<sec sec-type="ethics-statement" id="sec31">
<title>Ethics statement</title>
<p>The studies involving humans were approved by Jiangxi Normal University of Ethics Committee (IRB-JXNU-PEC-20240402). The studies were conducted in accordance with the local legislation and institutional requirements. The participants provided their written informed consent to participate in this study.</p>
</sec>
<sec sec-type="author-contributions" id="sec32">
<title>Author contributions</title>
<p>BC: Software, Funding acquisition, Resources, Writing &#x2013; original draft, Project administration, Visualization, Methodology, Investigation, Writing &#x2013; review &#x0026; editing, Data curation, Conceptualization, Validation. SH: Writing &#x2013; review &#x0026; editing, Investigation, Software, Writing &#x2013; original draft, Funding acquisition, Conceptualization, Supervision, Formal analysis, Data curation. ZT: Writing &#x2013; review &#x0026; editing, Funding acquisition, Writing &#x2013; original draft, Supervision, Project administration, Software, Visualization, Formal analysis. CH: Visualization, Data curation, Project administration, Resources, Validation, Software, Investigation, Writing &#x2013; review &#x0026; editing, Funding acquisition, Conceptualization, Writing &#x2013; original draft. JY: Funding acquisition, Resources, Validation, Project administration, Investigation, Supervision, Writing &#x2013; original draft, Data curation, Conceptualization, Writing &#x2013; review &#x0026; editing, Methodology.</p>
</sec>
<sec sec-type="COI-statement" id="sec33">
<title>Conflict of interest</title>
<p>The author(s) declared that this work was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.</p>
</sec>
<sec sec-type="ai-statement" id="sec34">
<title>Generative AI statement</title>
<p>The author(s) declared that Generative AI was not used in the creation of this manuscript.</p>
<p>Any alternative text (alt text) provided alongside figures in this article has been generated by Frontiers with the support of artificial intelligence and reasonable efforts have been made to ensure accuracy, including review by the authors wherever possible. If you identify any issues, please contact us.</p>
</sec>
<sec sec-type="disclaimer" id="sec35">
<title>Publisher&#x2019;s note</title>
<p>All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.</p>
</sec>
<ref-list>
<title>References</title>
<ref id="ref1"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Alhadabi</surname><given-names>A.</given-names></name> <name><surname>Karpinski</surname><given-names>A. C.</given-names></name></person-group> (<year>2020</year>). <article-title>Grit, self-efficacy, achievement orientation goals, and academic performance in university students</article-title>. <source>Int. J. Adolesc. Youth</source>. <volume>25</volume>, <fpage>519</fpage>&#x2013;<lpage>535</lpage>. doi: <pub-id pub-id-type="doi">10.1080/02673843.2019.1679202</pub-id></mixed-citation></ref>
<ref id="ref2"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Almoraie</surname><given-names>N. M.</given-names></name> <name><surname>Alothmani</surname><given-names>N. M.</given-names></name> <name><surname>Alomari</surname><given-names>W. D.</given-names></name> <name><surname>Al-amoudi</surname><given-names>A. H.</given-names></name></person-group> (<year>2025</year>). <article-title>Addressing nutritional issues and eating behaviours among university students: a narrative review</article-title>. <source>Nutr. Res. Rev.</source> <volume>38</volume>, <fpage>53</fpage>&#x2013;<lpage>68</lpage>. doi: <pub-id pub-id-type="doi">10.1017/S0954422424000088</pub-id>, <pub-id pub-id-type="pmid">38356364</pub-id></mixed-citation></ref>
<ref id="ref3"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Antunes</surname><given-names>R.</given-names></name> <name><surname>Rebelo-Gon&#x00E7;alves</surname><given-names>R.</given-names></name> <name><surname>Amaro</surname><given-names>N.</given-names></name> <name><surname>Salvador</surname><given-names>R.</given-names></name> <name><surname>Matos</surname><given-names>R.</given-names></name> <name><surname>Morou&#x00E7;o</surname><given-names>P.</given-names></name> <etal/></person-group>. (<year>2021</year>). <article-title>Higher physical activity levels may help buffer the negative psychological consequences of coronavirus disease 2019 Pandemic</article-title>. <source>Front. Psychol.</source> <volume>12</volume>:<fpage>672811</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpsyg.2021.672811</pub-id>, <pub-id pub-id-type="pmid">33967927</pub-id></mixed-citation></ref>
<ref id="ref4"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Bae</surname><given-names>M.-H.</given-names></name> <name><surname>Zhang</surname><given-names>X.</given-names></name> <name><surname>Lee</surname><given-names>J.-S.</given-names></name></person-group> (<year>2024</year>). <article-title>Exercise, grit, and life satisfaction among Korean adolescents: a latent growth modeling analysis</article-title>. <source>BMC Public Health</source> <volume>24</volume>:<fpage>1392</fpage>. doi: <pub-id pub-id-type="doi">10.1186/s12889-024-18899-8</pub-id>, <pub-id pub-id-type="pmid">38783255</pub-id></mixed-citation></ref>
<ref id="ref5"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Bandura</surname><given-names>A.</given-names></name></person-group> (<year>1991</year>). <article-title>Social cognitive theory of self-regulation</article-title>. <source>Organ. Behav. Hum. Decis. Process.</source> <volume>50</volume>, <fpage>248</fpage>&#x2013;<lpage>287</lpage>. doi: <pub-id pub-id-type="doi">10.1016/0749-5978(91)90022-L</pub-id></mixed-citation></ref>
<ref id="ref6"><mixed-citation publication-type="book"><person-group person-group-type="author"><name><surname>Bandura</surname><given-names>A.</given-names></name></person-group> (<year>1997</year>). <source>Self-efficacy: The exercise of control</source>. <publisher-name>W H Freeman/Times Books/Henry Holt and Co</publisher-name>.</mixed-citation></ref>
<ref id="ref7"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Bandura</surname><given-names>A.</given-names></name></person-group> (<year>1982</year>). <article-title>Self-efficacy mechanism in human agency</article-title>. <source>American Psychologist</source> <volume>37</volume>, <fpage>122</fpage>&#x2013;<lpage>147</lpage>. doi: <pub-id pub-id-type="doi">10.1037/0003-066x.37.2.122</pub-id></mixed-citation></ref>
<ref id="ref8"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Barbosa</surname><given-names>R de O</given-names></name> <name><surname>Santos</surname><given-names>GC</given-names><prefix>dos</prefix></name> <name><surname>Silva</surname><given-names>JM</given-names><prefix>da</prefix></name> <name><surname>Silva</surname><given-names>TM de S</given-names></name> <name><surname>Dias</surname><given-names>PHG</given-names></name> <name><surname>Correa</surname><given-names>RC</given-names></name> <etal/></person-group>. (<year>2024</year>). <article-title>Does autonomous motivation and self-efficacy mediate associations between environmental factors and physical activity in adolescents?</article-title> <source>BMC Psychol.</source>. <volume>12</volume>:<fpage>548</fpage>. doi: <pub-id pub-id-type="doi">10.1186/s40359-024-02055-3</pub-id></mixed-citation></ref>
<ref id="ref9"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Beattie</surname><given-names>M.</given-names></name> <name><surname>Konttinen</surname><given-names>H.</given-names></name> <name><surname>Volanen</surname><given-names>S.</given-names></name> <name><surname>Hankonen</surname><given-names>N.</given-names></name></person-group> (<year>2022</year>). <article-title>Latent profile analysis as a method for process evaluations: discovering response subgroups in a mindfulness intervention</article-title>. <source>Soc. Sci. Med.</source> <volume>296</volume>:<fpage>114748</fpage>. doi: <pub-id pub-id-type="doi">10.1016/j.socscimed.2022.114748</pub-id>, <pub-id pub-id-type="pmid">35168054</pub-id></mixed-citation></ref>
<ref id="ref10"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Biddle</surname><given-names>S. J. H.</given-names></name> <name><surname>Gorely</surname><given-names>T.</given-names></name> <name><surname>Faulkner</surname><given-names>G.</given-names></name> <name><surname>Mutrie</surname><given-names>N.</given-names></name></person-group> (<year>2023</year>). <article-title>Psychology of physical activity: a 30-year reflection on correlates, barriers, and theory</article-title>. <source>Int. J. Sport Exerc. Psychol.</source> <volume>21</volume>:<fpage>7261</fpage>. doi: <pub-id pub-id-type="doi">10.1080/1612197X.2022.2147261</pub-id></mixed-citation></ref>
<ref id="ref11"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Biddle</surname><given-names>S. J. H.</given-names></name> <name><surname>Henson</surname><given-names>J.</given-names></name> <name><surname>Davies</surname><given-names>M. J.</given-names></name> <name><surname>Khunti</surname><given-names>K.</given-names></name> <name><surname>Sutton</surname><given-names>S.</given-names></name> <name><surname>Yates</surname><given-names>T.</given-names></name> <etal/></person-group>. (<year>2021</year>). <article-title>Device-assessed total and prolonged sitting time: associations with anxiety, depression, and health-related quality of life in adults</article-title>. <source>J. Affect. Disord.</source> <volume>287</volume>, <fpage>107</fpage>&#x2013;<lpage>114</lpage>. doi: <pub-id pub-id-type="doi">10.1016/j.jad.2021.03.037</pub-id>, <pub-id pub-id-type="pmid">33774318</pub-id></mixed-citation></ref>
<ref id="ref12"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Biggs</surname><given-names>A. T.</given-names></name> <name><surname>Seech</surname><given-names>T. R.</given-names></name> <name><surname>Johnston</surname><given-names>S. L.</given-names></name> <name><surname>Russell</surname><given-names>D. W.</given-names></name></person-group> (<year>2024</year>). <article-title>Psychological endurance: how grit, resilience, and related factors contribute to sustained effort despite adversity</article-title>. <source>J. Gen. Psychol.</source> <volume>151</volume>, <fpage>271</fpage>&#x2013;<lpage>313</lpage>. doi: <pub-id pub-id-type="doi">10.1080/00221309.2023.2253955</pub-id>, <pub-id pub-id-type="pmid">37697826</pub-id></mixed-citation></ref>
<ref id="ref13"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Blom</surname><given-names>V.</given-names></name> <name><surname>Drake</surname><given-names>E.</given-names></name> <name><surname>Kallings</surname><given-names>L. V.</given-names></name> <name><surname>Ekblom</surname><given-names>M. M.</given-names></name> <name><surname>Nooijen</surname><given-names>C. F. J.</given-names></name></person-group> (<year>2021</year>). <article-title>The effects on self-efficacy, motivation and perceived barriers of an intervention targeting physical activity and sedentary behaviours in office workers: a cluster randomized control trial</article-title>. <source>BMC Public Health</source> <volume>21</volume>:<fpage>1048</fpage>. doi: <pub-id pub-id-type="doi">10.1186/s12889-021-11083-2</pub-id>, <pub-id pub-id-type="pmid">34078342</pub-id></mixed-citation></ref>
<ref id="ref14"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Booth</surname><given-names>J. N.</given-names></name> <name><surname>Ness</surname><given-names>A. R.</given-names></name> <name><surname>Joinson</surname><given-names>C.</given-names></name> <name><surname>Tomporowski</surname><given-names>P. D.</given-names></name> <name><surname>Boyle</surname><given-names>J. M. E.</given-names></name> <name><surname>Leary</surname><given-names>S. D.</given-names></name> <etal/></person-group>. (<year>2023</year>). <article-title>Associations between physical activity and mental health and behaviour in early adolescence</article-title>. <source>Ment. Health Phys. Act.</source> <volume>24</volume>:<fpage>100497</fpage>. doi: <pub-id pub-id-type="doi">10.1016/j.mhpa.2022.100497</pub-id></mixed-citation></ref>
<ref id="ref15"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Brown</surname><given-names>C. E. B.</given-names></name> <name><surname>Richardson</surname><given-names>K. E.</given-names></name> <name><surname>Halil-Pizzirani</surname><given-names>B.</given-names></name> <name><surname>Atkins</surname><given-names>L.</given-names></name> <name><surname>Y&#x00FC;cel</surname><given-names>M.</given-names></name> <name><surname>Segrave</surname><given-names>R. A.</given-names></name></person-group> (<year>2024</year>). <article-title>Key influences on university students&#x2019; physical activity: a systematic review using the theoretical domains framework and the COM-B model of human behaviour</article-title>. <source>BMC Public Health</source> <volume>24</volume>:<fpage>418</fpage>. doi: <pub-id pub-id-type="doi">10.1186/s12889-023-17621-4</pub-id>, <pub-id pub-id-type="pmid">38336748</pub-id></mixed-citation></ref>
<ref id="ref16"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Buabang</surname><given-names>E. K.</given-names></name> <name><surname>Donegan</surname><given-names>K. R.</given-names></name> <name><surname>Rafei</surname><given-names>P.</given-names></name> <name><surname>Gillan</surname><given-names>C. M.</given-names></name></person-group> (<year>2025</year>). <article-title>Leveraging cognitive neuroscience for making and breaking real-world habits</article-title>. <source>Trends Cogn. Sci.</source> <volume>29</volume>, <fpage>41</fpage>&#x2013;<lpage>59</lpage>. doi: <pub-id pub-id-type="doi">10.1016/j.tics.2024.10.006</pub-id>, <pub-id pub-id-type="pmid">39500685</pub-id></mixed-citation></ref>
<ref id="ref17"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Calo</surname><given-names>M.</given-names></name> <name><surname>Judd</surname><given-names>B.</given-names></name> <name><surname>Peiris</surname><given-names>C.</given-names></name></person-group> (<year>2024</year>). <article-title>Grit, resilience and growth-mindset interventions in health professional students: a systematic review and meta-analysis</article-title>. <source>Med. Educ.</source> <volume>58</volume>, <fpage>902</fpage>&#x2013;<lpage>919</lpage>. doi: <pub-id pub-id-type="doi">10.1111/medu.15391</pub-id></mixed-citation></ref>
<ref id="ref18"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Chen</surname><given-names>B.</given-names></name> <name><surname>Yang</surname><given-names>J.</given-names></name> <name><surname>Huang</surname><given-names>W.</given-names></name> <name><surname>Zhang</surname><given-names>W.</given-names></name> <name><surname>Yang</surname><given-names>C.</given-names></name> <name><surname>Hu</surname><given-names>C.</given-names></name></person-group> (<year>2025</year>). <article-title>The latent profile structure of alexithymia in the elderly and its relationship to eating behaviors: the mediating role of physical activity</article-title>. <source>Front. Psychol.</source> <volume>16</volume>:<fpage>1701168</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpsyg.2025.1701168</pub-id></mixed-citation></ref>
<ref id="ref19"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Chu</surname><given-names>I.</given-names></name> <name><surname>Chen</surname><given-names>Y.</given-names></name> <name><surname>Wu</surname><given-names>P.</given-names></name> <name><surname>Wu</surname><given-names>W.-L.</given-names></name> <name><surname>Guo</surname><given-names>L.-Y.</given-names></name></person-group> (<year>2021</year>). <article-title>The associations between self-determined motivation, multidimensional self-efficacy, and device-measured physical activity</article-title>. <source>Int. J. Environ. Res. Public Health</source> <volume>18</volume>:<fpage>8002</fpage>. doi: <pub-id pub-id-type="doi">10.3390/ijerph18158002</pub-id>, <pub-id pub-id-type="pmid">34360300</pub-id></mixed-citation></ref>
<ref id="ref20"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Coci&#x0107;</surname><given-names>D.</given-names></name> <name><surname>Larkin</surname><given-names>P.</given-names></name> <name><surname>Hendry</surname><given-names>D. T.</given-names></name> <name><surname>Williams</surname><given-names>A. M.</given-names></name> <name><surname>O&#x2019;Connor</surname><given-names>D.</given-names></name> <name><surname>Bilali&#x0107;</surname><given-names>M.</given-names></name></person-group> (<year>2024</year>). <article-title>How small differences grow over time &#x2013; the snowball effect of grit on practice in sport</article-title>. <source>Int. J. Sport Exerc. Psychol.</source> <volume>23</volume>, <fpage>830</fpage>&#x2013;<lpage>852</lpage>. doi: <pub-id pub-id-type="doi">10.1080/1612197x.2024.2359476</pub-id></mixed-citation></ref>
<ref id="ref21"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Cormier</surname><given-names>D. L.</given-names></name> <name><surname>Ferguson</surname><given-names>L. J.</given-names></name> <name><surname>Gyurcsik</surname><given-names>N. C.</given-names></name> <name><surname>Briere</surname><given-names>J. L.</given-names></name> <name><surname>Dunn</surname><given-names>J. G. H.</given-names></name> <name><surname>Kowalski</surname><given-names>K. C.</given-names></name></person-group> (<year>2024</year>). <article-title>Grit in sport: a scoping review</article-title>. <source>Int. Rev. Sport Exerc. Psychol.</source> <volume>17</volume>, <fpage>1</fpage>&#x2013;<lpage>38</lpage>. doi: <pub-id pub-id-type="doi">10.1080/1750984X.2021.1934887</pub-id></mixed-citation></ref>
<ref id="ref22"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Dai</surname><given-names>L.</given-names></name> <name><surname>Su</surname><given-names>B.</given-names></name> <name><surname>Liu</surname><given-names>Q.</given-names></name></person-group> (<year>2025</year>). <article-title>Influence of grit on adolescents&#x2019; exercise adherence: the mediating role of exercise self-efficacy and the moderating role of self-control</article-title>. <source>Acta Psychol.</source> <volume>255</volume>:<fpage>104952</fpage>. doi: <pub-id pub-id-type="doi">10.1016/j.actpsy.2025.104952</pub-id>, <pub-id pub-id-type="pmid">40158229</pub-id></mixed-citation></ref>
<ref id="ref23"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Daniels</surname><given-names>B. T.</given-names></name> <name><surname>Human</surname><given-names>A.</given-names></name> <name><surname>Gallagher</surname><given-names>K.</given-names></name> <name><surname>Howie</surname><given-names>E.</given-names></name></person-group> (<year>2021</year>). <article-title>Relationships between grit, physical activity, and academic success in university students: domains of physical activity matter</article-title>. <source>J. Am. Coll. Heal.</source> <volume>71</volume>, <fpage>1897</fpage>&#x2013;<lpage>1905</lpage>. doi: <pub-id pub-id-type="doi">10.1080/07448481.2021.1950163</pub-id>, <pub-id pub-id-type="pmid">34242136</pub-id></mixed-citation></ref>
<ref id="ref24"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Datu</surname><given-names>J. A.</given-names></name> <name><surname>Yuen</surname><given-names>M.</given-names></name> <name><surname>Fung</surname><given-names>E.</given-names></name> <name><surname>Zhang</surname><given-names>J.</given-names></name> <name><surname>Chan</surname><given-names>S.</given-names></name> <name><surname>Wu</surname><given-names>F. K. Y.</given-names></name></person-group> (<year>2022</year>). <article-title>The satisfied lives of gifted and gritty adolescents: linking grit to career self-efficacy and life satisfaction</article-title>. <source>J. Early Adolesc.</source> <volume>42</volume>, <fpage>1052</fpage>&#x2013;<lpage>1072</lpage>. doi: <pub-id pub-id-type="doi">10.1177/02724316221096082</pub-id></mixed-citation></ref>
<ref id="ref25"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>De La Cruz</surname><given-names>M.</given-names></name> <name><surname>Zarate</surname><given-names>A.</given-names></name> <name><surname>Zamarripa</surname><given-names>J.</given-names></name> <name><surname>Castillo</surname><given-names>I.</given-names></name> <name><surname>Borbon</surname><given-names>A.</given-names></name> <name><surname>Duarte</surname><given-names>H.</given-names></name> <etal/></person-group>. (<year>2021</year>). <article-title>Grit, self-efficacy, motivation and the readiness to change index toward exercise in the adult population</article-title>. <source>Front. Psychol.</source> <volume>12</volume>:<fpage>732325</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpsyg.2021.732325</pub-id>, <pub-id pub-id-type="pmid">34456832</pub-id></mixed-citation></ref>
<ref id="ref26"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Deci</surname><given-names>E.</given-names></name> <name><surname>Ryan</surname><given-names>R. M.</given-names></name></person-group> (<year>2008</year>). <article-title>Self-determination theory: a macrotheory of human motivation, development, and health</article-title>. <source>Can. Psychol./Psychol. Can.</source> <volume>49</volume>, <fpage>182</fpage>&#x2013;<lpage>185</lpage>. doi: <pub-id pub-id-type="doi">10.1037/a0012801</pub-id></mixed-citation></ref>
<ref id="ref27"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Deforche</surname><given-names>B.</given-names></name> <name><surname>Van Dyck</surname><given-names>D.</given-names></name> <name><surname>Deliens</surname><given-names>T.</given-names></name> <name><surname>De Bourdeaudhuij</surname><given-names>I.</given-names></name></person-group> (<year>2015</year>). <article-title>Changes in weight, physical activity, sedentary behaviour and dietary intake during the transition to higher education: a prospective study</article-title>. <source>Int. J. Behav. Nutr. Phys. Act.</source> <volume>12</volume>:<fpage>16</fpage>. doi: <pub-id pub-id-type="doi">10.1186/s12966-015-0173-9</pub-id>, <pub-id pub-id-type="pmid">25881147</pub-id></mixed-citation></ref>
<ref id="ref28"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Dogra</surname><given-names>S.</given-names></name> <name><surname>Dunstan</surname><given-names>D. W.</given-names></name> <name><surname>Sugiyama</surname><given-names>T.</given-names></name> <name><surname>Stathi</surname><given-names>A.</given-names></name> <name><surname>Gardiner</surname><given-names>P. A.</given-names></name> <name><surname>Owen</surname><given-names>N.</given-names></name></person-group> (<year>2022</year>). <article-title>Active aging and public health: evidence, implications, and opportunities</article-title>. <source>Annu. Rev. Public Health</source> <volume>43</volume>:<fpage>439</fpage>. doi: <pub-id pub-id-type="doi">10.1146/annurev-publhealth-052620-091107</pub-id>, <pub-id pub-id-type="pmid">34910580</pub-id></mixed-citation></ref>
<ref id="ref29"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Dorina</surname><given-names>I.</given-names></name> <name><surname>Mullan</surname><given-names>B.</given-names></name> <name><surname>Boyes</surname><given-names>M.</given-names></name> <name><surname>Liddelow</surname><given-names>C.</given-names></name></person-group> (<year>2023</year>). <article-title>Utility of temporal self-regulation theory in health and social behaviours: a meta-analysis</article-title>. <source>Br. J. Health Psychol.</source> <volume>28</volume>, <fpage>397</fpage>&#x2013;<lpage>438</lpage>. doi: <pub-id pub-id-type="doi">10.1111/bjhp.12631</pub-id>, <pub-id pub-id-type="pmid">36404715</pub-id></mixed-citation></ref>
<ref id="ref30"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Duckworth</surname><given-names>A. L.</given-names></name> <name><surname>Peterson</surname><given-names>C.</given-names></name> <name><surname>Matthews</surname><given-names>M. D.</given-names></name> <name><surname>Kelly</surname><given-names>D. R.</given-names></name></person-group> (<year>2007</year>). <article-title>Grit: perseverance and passion for long-term goals</article-title>. <source>J. Pers. Soc. Psychol.</source> <volume>92</volume>, <fpage>1087</fpage>&#x2013;<lpage>1101</lpage>. doi: <pub-id pub-id-type="doi">10.1037/0022-3514.92.6.1087</pub-id>, <pub-id pub-id-type="pmid">17547490</pub-id></mixed-citation></ref>
<ref id="ref31"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Duckworth</surname><given-names>A. L.</given-names></name> <name><surname>Quinn</surname><given-names>P. D.</given-names></name></person-group> (<year>2009</year>). <article-title>Development and validation of the short grit scale (grit-S)</article-title>. <source>J. Pers. Assess.</source> <volume>91</volume>, <fpage>166</fpage>&#x2013;<lpage>174</lpage>. doi: <pub-id pub-id-type="doi">10.1080/00223890802634290</pub-id></mixed-citation></ref>
<ref id="ref32"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Duckworth</surname><given-names>A. L.</given-names></name> <name><surname>Quinn</surname><given-names>P. D.</given-names></name> <name><surname>Tsukayama</surname><given-names>E.</given-names></name></person-group> (<year>2021</year>). <article-title>Revisiting the factor structure of grit: a commentary on Duckworth and Quinn (2009)</article-title>. <source>J. Pers. Assess.</source> <volume>103</volume>, <fpage>573</fpage>&#x2013;<lpage>575</lpage>. doi: <pub-id pub-id-type="doi">10.1080/00223891.2021.1942022</pub-id>, <pub-id pub-id-type="pmid">34254861</pub-id></mixed-citation></ref>
<ref id="ref33"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Dunston</surname><given-names>E.</given-names></name> <name><surname>Messina</surname><given-names>E. S.</given-names></name> <name><surname>Coelho</surname><given-names>A.</given-names></name> <name><surname>Chriest</surname><given-names>S.</given-names></name> <name><surname>Waldrip</surname><given-names>M.</given-names></name> <name><surname>Vahk</surname><given-names>A.</given-names></name> <etal/></person-group>. (<year>2020</year>). <article-title>Physical activity is associated with grit and resilience in college students: is intensity the key to success?</article-title> <source>J. Am. Coll. Heal.</source> <volume>70</volume>, <fpage>216</fpage>&#x2013;<lpage>222</lpage>. doi: <pub-id pub-id-type="doi">10.1080/07448481.2020.1740229</pub-id>, <pub-id pub-id-type="pmid">32240056</pub-id></mixed-citation></ref>
<ref id="ref34"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Egan</surname><given-names>H.</given-names></name> <name><surname>O&#x2019;hara</surname><given-names>M.</given-names></name> <name><surname>Cook</surname><given-names>A.</given-names></name> <name><surname>Mantzios</surname><given-names>M.</given-names></name></person-group> (<year>2021</year>). <article-title>Mindfulness, self-compassion, resiliency and wellbeing in higher education: a recipe to increase academic performance</article-title>. <source>J. Furth. High. Educ.</source> <volume>46</volume>, <fpage>301</fpage>&#x2013;<lpage>311</lpage>. doi: <pub-id pub-id-type="doi">10.1080/0309877x.2021.1912306</pub-id></mixed-citation></ref>
<ref id="ref35"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Estep</surname><given-names>A.</given-names></name> <name><surname>Martin</surname><given-names>J.</given-names></name> <name><surname>Toczko</surname><given-names>M.</given-names></name> <name><surname>Boolani</surname><given-names>A.</given-names></name></person-group> (<year>2021</year>). <article-title>Influence of grit and lifestyle on mental health in college students during the COVID-19 Pandemic</article-title>. <source>Med. Sci. Sports Exer.</source> <volume>53</volume>:<fpage>303</fpage>. doi: <pub-id pub-id-type="doi">10.1249/01.mss.0000762668.70317.9c</pub-id></mixed-citation></ref>
<ref id="ref36"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Griffiths</surname><given-names>K.</given-names></name> <name><surname>Moore</surname><given-names>R.</given-names></name> <name><surname>Brunton</surname><given-names>J.</given-names></name></person-group> (<year>2022</year>). <article-title>Sport and physical activity habits, behaviours and barriers to participation in university students: an exploration by socio-economic group</article-title>. <source>Sport Educ. Soc.</source> <volume>27</volume>:<fpage>7766</fpage>. doi: <pub-id pub-id-type="doi">10.1080/13573322.2020.1837766</pub-id></mixed-citation></ref>
<ref id="ref37"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Guthold</surname><given-names>R.</given-names></name> <name><surname>Stevens</surname><given-names>G. A.</given-names></name> <name><surname>Riley</surname><given-names>L. M.</given-names></name> <name><surname>Bull</surname><given-names>F. C.</given-names></name></person-group> (<year>2020</year>). <article-title>Global trends in insufficient physical activity among adolescents: a pooled analysis of 298 population-based surveys with 1&#x00B7;6 million participants</article-title>. <source>Lancet Child Adoles. Health.</source> <volume>4</volume>, <fpage>23</fpage>&#x2013;<lpage>35</lpage>. doi: <pub-id pub-id-type="doi">10.1016/S2352-4642(19)30323-2</pub-id>, <pub-id pub-id-type="pmid">31761562</pub-id></mixed-citation></ref>
<ref id="ref38"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Hammer</surname><given-names>T. M.</given-names></name> <name><surname>Johansson</surname><given-names>J.</given-names></name> <name><surname>Emaus</surname><given-names>N.</given-names></name> <name><surname>Furberg</surname><given-names>A.-S.</given-names></name> <name><surname>Gracia-Marco</surname><given-names>L.</given-names></name> <name><surname>Morseth</surname><given-names>B.</given-names></name> <etal/></person-group>. (<year>2025</year>). <article-title>Changes in accelerometer-measured physical activity and self-reported leisure time physical activity from adolescence to young adulthood: a longitudinal cohort study from the fit futures study</article-title>. <source>Int. J. Behav. Nutr. Phys. Act.</source> <volume>22</volume>:<fpage>99</fpage>. doi: <pub-id pub-id-type="doi">10.1186/s12966-025-01799-4</pub-id>, <pub-id pub-id-type="pmid">40665358</pub-id></mixed-citation></ref>
<ref id="ref39"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Hartzel</surname><given-names>B.</given-names></name> <name><surname>Martin</surname><given-names>J.</given-names></name> <name><surname>Estep</surname><given-names>A.</given-names></name> <name><surname>Toczko</surname><given-names>M.</given-names></name> <name><surname>Boolani</surname><given-names>A.</given-names></name></person-group> (<year>2021</year>). <article-title>Relationships between grit and healthy lifestyle behaviors in undergraduate college students during the COVID-19 PANDEMIC</article-title>. <source>Med. Sci. Sports Exerc.</source> <volume>53</volume>:<fpage>228</fpage>. doi: <pub-id pub-id-type="doi">10.1249/01.mss.0000761684.11540.d0</pub-id></mixed-citation></ref>
<ref id="ref40"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Hennessy</surname><given-names>E.</given-names></name> <name><surname>Johnson</surname><given-names>B. T.</given-names></name> <name><surname>Acabchuk</surname><given-names>R. L.</given-names></name> <name><surname>McCloskey</surname><given-names>K.</given-names></name> <name><surname>Stewart-James</surname><given-names>J.</given-names></name></person-group> (<year>2020</year>). <article-title>Self-regulation mechanisms in health behavior change: a systematic meta-review of meta-analyses, 2006&#x2013;2017</article-title>. <source>Health Psychol. Rev.</source> <volume>14</volume>, <fpage>6</fpage>&#x2013;<lpage>42</lpage>. doi: <pub-id pub-id-type="doi">10.1080/17437199.2019.1679654</pub-id>, <pub-id pub-id-type="pmid">31662031</pub-id></mixed-citation></ref>
<ref id="ref41"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Hilger-Kolb</surname><given-names>J.</given-names></name> <name><surname>Loerbroks</surname><given-names>A.</given-names></name> <name><surname>Diehl</surname><given-names>K.</given-names></name></person-group> (<year>2020</year>). <article-title>&#x2018;When I have time pressure, sport is the first thing that is cancelled&#x2019;: a mixed-methods study on barriers to physical activity among university students in Germany</article-title>. <source>J. Sports Sci.</source> <volume>38</volume>, <fpage>2479</fpage>&#x2013;<lpage>2488</lpage>. doi: <pub-id pub-id-type="doi">10.1080/02640414.2020.1792159</pub-id>, <pub-id pub-id-type="pmid">32658595</pub-id></mixed-citation></ref>
<ref id="ref42"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Hu</surname><given-names>C.</given-names></name> <name><surname>Zhang</surname><given-names>W.</given-names></name> <name><surname>Huang</surname><given-names>W.</given-names></name> <name><surname>Jin</surname><given-names>C.</given-names></name></person-group> (<year>2025</year>). <article-title>How grit enhances physical exercise in college students: mediating roles of personal growth initiative and self-efficacy</article-title>. <source>Front. Psychol.</source> <volume>16</volume>:<fpage>1652984</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpsyg.2025.1652984</pub-id>, <pub-id pub-id-type="pmid">40994858</pub-id></mixed-citation></ref>
<ref id="ref43"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Huang</surname><given-names>W.</given-names></name> <name><surname>Chen</surname><given-names>B.</given-names></name> <name><surname>Hu</surname><given-names>C.</given-names></name></person-group> (<year>2025a</year>). <article-title>Exploring self-rated health, physical activity, and social anxiety among female Chinese university students: a variable- and person-centered analysis</article-title>. <source>Front. Public Health</source> <volume>13</volume>:<fpage>1681504</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpubh.2025.1681504</pub-id>, <pub-id pub-id-type="pmid">41048258</pub-id></mixed-citation></ref>
<ref id="ref44"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Huang</surname><given-names>W.</given-names></name> <name><surname>Chen</surname><given-names>B.</given-names></name> <name><surname>Hu</surname><given-names>C.</given-names></name></person-group> (<year>2025b</year>). <article-title>The latent profile structure of negative emotion in female college students and its impact on eating behavior: the mediating role of physical exercise</article-title>. <source>Front. Public Health</source> <volume>13</volume>:<fpage>1663474</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpubh.2025.1663474</pub-id>, <pub-id pub-id-type="pmid">40880924</pub-id></mixed-citation></ref>
<ref id="ref45"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Hull</surname><given-names>E. E.</given-names></name> <name><surname>Vultaggio</surname><given-names>J.</given-names></name></person-group> (<year>2019</year>). <article-title>Grit, fitness, and goal setting</article-title>. <source>Med. Sci. Sports Exerc.</source> <volume>51</volume>:<fpage>391</fpage>. doi: <pub-id pub-id-type="doi">10.1249/01.mss.0000561672.05204.7a</pub-id></mixed-citation></ref>
<ref id="ref46"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Islam</surname><given-names>K. F.</given-names></name> <name><surname>Awal</surname><given-names>A.</given-names></name> <name><surname>Mazumder</surname><given-names>H.</given-names></name> <name><surname>Munni</surname><given-names>U. R.</given-names></name> <name><surname>Majumder</surname><given-names>K.</given-names></name> <name><surname>Afroz</surname><given-names>K.</given-names></name> <etal/></person-group>. (<year>2023</year>). <article-title>Social cognitive theory-based health promotion in primary care practice: a scoping review</article-title>. <source>Heliyon.</source> <volume>9</volume>:<fpage>e14889</fpage>. doi: <pub-id pub-id-type="doi">10.1016/j.heliyon.2023.e14889</pub-id>, <pub-id pub-id-type="pmid">37025832</pub-id></mixed-citation></ref>
<ref id="ref47"><mixed-citation publication-type="book"><person-group person-group-type="author"><name><surname>Jerusalem</surname><given-names>M.</given-names></name> <name><surname>Schwarzer</surname><given-names>R.</given-names></name></person-group>  (<year>1995</year>). <article-title>General self-efficacy scale&#x2013;revised&#x2013;English version. Measures in Health Psychology: A User&#x2019;s Portfolio. Causal and control beliefs Windsor</article-title>.</mixed-citation></ref>
<ref id="ref48"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Jiang</surname><given-names>Y.</given-names></name> <name><surname>Fu</surname><given-names>Y.</given-names></name> <name><surname>Dong</surname><given-names>X.</given-names></name></person-group> (<year>2025</year>). <article-title>Effects of physical exercise on college students&#x2019; academic self-efficacy: the chain mediating role of future orientation and mental toughness</article-title>. <source>Front. Psychol.</source> <volume>16</volume>:<fpage>1604725</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpsyg.2025.1604725</pub-id>, <pub-id pub-id-type="pmid">40497114</pub-id></mixed-citation></ref>
<ref id="ref49"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Jiang</surname><given-names>W.</given-names></name> <name><surname>Tang</surname><given-names>X.</given-names></name> <name><surname>Ye</surname><given-names>J.</given-names></name> <name><surname>Jiang</surname><given-names>J.</given-names></name></person-group> (<year>2023</year>). <article-title>What drives daily perseverance and passion? Grit, conscientiousness, and goal pursuit experiences</article-title>. <source>Personal. Soc. Psychol. Bull.</source> <volume>49</volume>, <fpage>727</fpage>&#x2013;<lpage>743</lpage>. doi: <pub-id pub-id-type="doi">10.1177/01461672221076970</pub-id>, <pub-id pub-id-type="pmid">35209764</pub-id></mixed-citation></ref>
<ref id="ref50"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Jiang</surname><given-names>C.</given-names></name> <name><surname>Wang</surname><given-names>K.</given-names></name> <name><surname>Qin</surname><given-names>H.</given-names></name></person-group> (<year>2025</year>). <article-title>Physical exercise and children&#x2019;s resilience: mediating roles of self-efficacy and emotional intelligence</article-title>. <source>Front. Psychol.</source> <volume>16</volume>:<fpage>1491262</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpsyg.2025.1491262</pub-id>, <pub-id pub-id-type="pmid">40191570</pub-id></mixed-citation></ref>
<ref id="ref51"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Jiang</surname><given-names>L.</given-names></name> <name><surname>Zhang</surname><given-names>S.</given-names></name> <name><surname>Li</surname><given-names>X.</given-names></name> <name><surname>Luo</surname><given-names>F.</given-names></name></person-group> (<year>2023</year>). <article-title>How grit influences high school students&#x2019; academic performance and the mediation effect of academic self-efficacy and cognitive learning strategies</article-title>. <source>Curr. Psychol.</source> <volume>42</volume>, <fpage>94</fpage>&#x2013;<lpage>103</lpage>. doi: <pub-id pub-id-type="doi">10.1007/s12144-020-01306-x</pub-id></mixed-citation></ref>
<ref id="ref52"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Jong</surname><given-names>M. D.</given-names></name> <name><surname>Pl&#x00FC;g</surname><given-names>S.</given-names></name> <name><surname>Collins</surname><given-names>A.</given-names></name></person-group> (<year>2025</year>). <article-title>The healthy hard worker: a critical analysis of young adult south Africans&#x2019; discursive constructions of health</article-title>. <source>Int. J. Cult. Stud.</source> <volume>28</volume>, <fpage>797</fpage>&#x2013;<lpage>813</lpage>. doi: <pub-id pub-id-type="doi">10.1177/13678779251322905</pub-id>, <pub-id pub-id-type="pmid">41321435</pub-id></mixed-citation></ref>
<ref id="ref53"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Kleppang</surname><given-names>A. L.</given-names></name> <name><surname>Steigen</surname><given-names>A. M.</given-names></name> <name><surname>Finbr&#x00E5;ten</surname><given-names>H.</given-names></name></person-group> (<year>2023</year>). <article-title>Explaining variance in self-efficacy among adolescents: the association between mastery experiences, social support, and self-efficacy</article-title>. <source>BMC Public Health</source> <volume>23</volume>:<fpage>1665</fpage>. doi: <pub-id pub-id-type="doi">10.1186/s12889-023-16603-w</pub-id>, <pub-id pub-id-type="pmid">37648980</pub-id></mixed-citation></ref>
<ref id="ref54"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Li</surname><given-names>K.</given-names></name> <name><surname>Wang</surname><given-names>H.</given-names></name> <name><surname>Siu</surname><given-names>O.</given-names></name> <name><surname>Yu</surname><given-names>H.</given-names></name></person-group> (<year>2024</year>). <article-title>How and when resilience can boost student academic performance: a weekly diary study on the roles of self-regulation behaviors, grit, and social support</article-title>. <source>J. Happiness Stud.</source> <volume>25</volume>:<fpage>36</fpage>. doi: <pub-id pub-id-type="doi">10.1007/s10902-024-00749-4</pub-id></mixed-citation></ref>
<ref id="ref55"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Liang</surname><given-names>D.</given-names></name></person-group> (<year>1994</year>). <article-title>Stress levels among college students and their relationship with physical exercise</article-title>. <source>Chin. Ment. Health J.</source> <volume>1</volume>, <fpage>5</fpage>&#x2013;<lpage>6</lpage>.</mixed-citation></ref>
<ref id="ref56"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Liu</surname><given-names>G.</given-names></name> <name><surname>Chen</surname><given-names>Q.</given-names></name> <name><surname>Yuan</surname><given-names>X.</given-names></name> <name><surname>Qian</surname><given-names>M.</given-names></name> <name><surname>Du</surname><given-names>S.</given-names></name></person-group> (<year>2024</year>). <article-title>The association between intergroup contact and psychological capital among adolescents from Chinese ethnic minority areas: a latent profile analysis</article-title>. <source>Int. J. Intercult. Relat.</source> <volume>102</volume>:<fpage>102053</fpage>. doi: <pub-id pub-id-type="doi">10.1016/j.ijintrel.2024.102053</pub-id></mixed-citation></ref>
<ref id="ref57"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Liu</surname><given-names>Y.-S.</given-names></name> <name><surname>Lu</surname><given-names>C.-W.</given-names></name> <name><surname>Chung</surname><given-names>H.-T.</given-names></name> <name><surname>Wang</surname><given-names>J.-K.</given-names></name> <name><surname>Su</surname><given-names>W.-J.</given-names></name> <name><surname>Chen</surname><given-names>C.-W.</given-names></name></person-group> (<year>2023</year>). <article-title>Health-promoting lifestyle and life satisfaction in full-time employed adults with congenital heart disease: grit as a mediator</article-title>. <source>Eur. J. Cardiovasc. Nurs.</source> <volume>23</volume>, <fpage>348</fpage>&#x2013;<lpage>357</lpage>. doi: <pub-id pub-id-type="doi">10.1093/eurjcn/zvad104</pub-id>, <pub-id pub-id-type="pmid">37847800</pub-id></mixed-citation></ref>
<ref id="ref58"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Maggs</surname><given-names>J. L.</given-names></name></person-group> (<year>2024</year>). <article-title>John Schulenberg as a developmental scholar and mentor: personal reflections</article-title>. <source>J. Res. Adolesc.</source> <volume>34</volume>, <fpage>1332</fpage>&#x2013;<lpage>1340</lpage>. doi: <pub-id pub-id-type="doi">10.1111/jora.13024</pub-id>, <pub-id pub-id-type="pmid">39439257</pub-id></mixed-citation></ref>
<ref id="ref59"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Maio</surname><given-names>S. D.</given-names></name> <name><surname>Keller</surname><given-names>J.</given-names></name> <name><surname>Hohl</surname><given-names>D. H.</given-names></name> <name><surname>Schwarzer</surname><given-names>R.</given-names></name> <name><surname>Knoll</surname><given-names>N.</given-names></name></person-group> (<year>2020</year>). <article-title>Habits and self-efficacy moderate the effects of intentions and planning on physical activity</article-title>. <source>Br. J. Health Psychol.</source> <volume>26</volume>, <fpage>50</fpage>&#x2013;<lpage>66</lpage>. doi: <pub-id pub-id-type="doi">10.1111/bjhp.12452</pub-id>, <pub-id pub-id-type="pmid">32584510</pub-id></mixed-citation></ref>
<ref id="ref60"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Martinez Kercher</surname><given-names>V. M.</given-names></name> <name><surname>Watkins</surname><given-names>J. M.</given-names></name> <name><surname>Goss</surname><given-names>J. M.</given-names></name> <name><surname>Phillips</surname><given-names>L. A.</given-names></name> <name><surname>Roy</surname><given-names>B. A.</given-names></name> <name><surname>Blades</surname><given-names>K.</given-names></name> <etal/></person-group>. (<year>2024</year>). <article-title>Psychological needs, self-efficacy, motivation, and resistance training outcomes in a 16-week barbell training program for adults</article-title>. <source>Front. Psychol.</source> <volume>15</volume>:<fpage>15</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpsyg.2024.1439431</pub-id>, <pub-id pub-id-type="pmid">39286563</pub-id></mixed-citation></ref>
<ref id="ref61"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Mart&#x00ED;n-Rodr&#x00ED;guez</surname><given-names>A.</given-names></name> <name><surname>Gostian-Ropotin</surname><given-names>L. A.</given-names></name> <name><surname>Beltr&#x00E1;n-Velasco</surname><given-names>A. I.</given-names></name> <name><surname>Belando-Pedre&#x00F1;o</surname><given-names>N.</given-names></name> <name><surname>Sim&#x00F3;n</surname><given-names>J. A.</given-names></name> <name><surname>L&#x00F3;pez-Mora</surname><given-names>C.</given-names></name> <etal/></person-group>. (<year>2024</year>). <article-title>Sporting mind: the interplay of physical activity and psychological health</article-title>. <source>Sports.</source> <volume>12</volume>:<fpage>37</fpage>. doi: <pub-id pub-id-type="doi">10.3390/sports12010037</pub-id>, <pub-id pub-id-type="pmid">38275986</pub-id></mixed-citation></ref>
<ref id="ref62"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Moles</surname><given-names>T. A.</given-names></name> <name><surname>Auerbach</surname><given-names>A. D.</given-names></name> <name><surname>Petrie</surname><given-names>T. A.</given-names></name></person-group> (<year>2017</year>). <article-title>Grit happens: moderating effects on motivational feedback and sport performance</article-title>. <source>J. Appl. Sport Psychol.</source> <volume>29</volume>, <fpage>418</fpage>&#x2013;<lpage>433</lpage>. doi: <pub-id pub-id-type="doi">10.1080/10413200.2017.1306729</pub-id></mixed-citation></ref>
<ref id="ref63"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Moore</surname><given-names>R.</given-names></name> <name><surname>Edmondson</surname><given-names>L.</given-names></name> <name><surname>Gregory</surname><given-names>M.</given-names></name> <name><surname>Griffiths</surname><given-names>K.</given-names></name> <name><surname>Freeman</surname><given-names>E.</given-names></name></person-group> (<year>2023</year>). <article-title>Barriers and facilitators to physical activity and further digital exercise intervention among inactive British adolescents in secondary schools: a qualitative study with physical education teachers</article-title>. <source>Front. Public Health</source> <volume>11</volume>:<fpage>1193669</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpubh.2023.1193669</pub-id>, <pub-id pub-id-type="pmid">37346099</pub-id></mixed-citation></ref>
<ref id="ref64"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Morou&#x00E7;o</surname><given-names>P.</given-names></name> <name><surname>Carreira</surname><given-names>B.</given-names></name> <name><surname>Pinto</surname><given-names>R.</given-names></name></person-group> (<year>2022</year>). <article-title>P06-13Movida.Cronos &#x2013; eHealth app at primary care to fight sedentary behavior</article-title>. <source>Eur. J. Pub. Health</source> <volume>32</volume>:<fpage>ckac095.098</fpage>. doi: <pub-id pub-id-type="doi">10.1093/eurpub/ckac095.098</pub-id></mixed-citation></ref>
<ref id="ref65"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Neumann</surname><given-names>R.</given-names></name> <name><surname>Ahrens</surname><given-names>K. F.</given-names></name> <name><surname>Kollmann</surname><given-names>B.</given-names></name> <name><surname>Goldbach</surname><given-names>N.</given-names></name> <name><surname>Chmitorz</surname><given-names>A.</given-names></name> <name><surname>Weichert</surname><given-names>D.</given-names></name> <etal/></person-group>. (<year>2021</year>). <article-title>The impact of physical fitness on resilience to modern life stress and the mediating role of general self-efficacy</article-title>. <source>Eur. Arch. Psychiatry Clin. Neurosci.</source> <volume>272</volume>, <fpage>679</fpage>&#x2013;<lpage>692</lpage>. doi: <pub-id pub-id-type="doi">10.1007/s00406-021-01338-9</pub-id>, <pub-id pub-id-type="pmid">34622343</pub-id></mixed-citation></ref>
<ref id="ref66"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Ntoumanis</surname><given-names>N.</given-names></name> <name><surname>Ng</surname><given-names>J.</given-names></name> <name><surname>Prestwich</surname><given-names>A.</given-names></name> <name><surname>Quested</surname><given-names>E.</given-names></name> <name><surname>Hancox</surname><given-names>J. E.</given-names></name> <name><surname>Th&#x00F8;gersen-Ntoumani</surname><given-names>C.</given-names></name> <etal/></person-group>. (<year>2020</year>). <article-title>A meta-analysis of self-determination theory-informed intervention studies in the health domain: effects on motivation, health behavior, physical, and psychological health</article-title>. <source>Health Psychol. Rev.</source> <volume>15</volume>, <fpage>214</fpage>&#x2013;<lpage>244</lpage>. doi: <pub-id pub-id-type="doi">10.1080/17437199.2020.1718529</pub-id>, <pub-id pub-id-type="pmid">31983293</pub-id></mixed-citation></ref>
<ref id="ref67"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Pajares</surname><given-names>F.</given-names></name></person-group> (<year>1996</year>). <article-title>Self-efficacy beliefs in academic settings</article-title>. <source>Rev. Educ. Res.</source> <volume>66</volume>, <fpage>543</fpage>&#x2013;<lpage>578</lpage>. doi: <pub-id pub-id-type="doi">10.3102/00346543066004543</pub-id></mixed-citation></ref>
<ref id="ref68"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Peng</surname><given-names>B.</given-names></name> <name><surname>Chen</surname><given-names>W.</given-names></name> <name><surname>Wang</surname><given-names>H.</given-names></name> <name><surname>Yu</surname><given-names>T.</given-names></name></person-group> (<year>2025</year>). <article-title>How does physical exercise influence self-efficacy in adolescents? A study based on the mediating role of psychological resilience</article-title>. <source>BMC Psychol.</source> <volume>13</volume>:<fpage>285</fpage>. doi: <pub-id pub-id-type="doi">10.1186/s40359-025-02529-y</pub-id>, <pub-id pub-id-type="pmid">40119462</pub-id></mixed-citation></ref>
<ref id="ref69"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Phillips</surname><given-names>L. A.</given-names></name> <name><surname>More</surname><given-names>K.</given-names></name></person-group> (<year>2022</year>). <article-title>Evaluating behavior change factors over time for a simple vs. complex health behavior</article-title>. <source>Front. Psychol.</source> <volume>13</volume>:<fpage>962150</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpsyg.2022.962150</pub-id>, <pub-id pub-id-type="pmid">36160596</pub-id></mixed-citation></ref>
<ref id="ref70"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Popa-Velea</surname><given-names>O.</given-names></name> <name><surname>P&#x00EE;rvan</surname><given-names>I.</given-names></name> <name><surname>Diaconescu</surname><given-names>L.</given-names></name></person-group> (<year>2021</year>). <article-title>The impact of self-efficacy, optimism, resilience and perceived stress on academic performance and its subjective evaluation: a cross-sectional study</article-title>. <source>Int. J. Environ. Res. Public Health</source> <volume>18</volume>:<fpage>8911</fpage>. doi: <pub-id pub-id-type="doi">10.3390/ijerph18178911</pub-id>, <pub-id pub-id-type="pmid">34501501</pub-id></mixed-citation></ref>
<ref id="ref71"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Rigby</surname><given-names>C.</given-names></name> <name><surname>Ryan</surname><given-names>R. M.</given-names></name></person-group> (<year>2018</year>). <article-title>Self-determination theory in human resource development: new directions and practical considerations</article-title>. <source>Adv. Dev. Hum. Resour.</source> <volume>20</volume>, <fpage>133</fpage>&#x2013;<lpage>147</lpage>. doi: <pub-id pub-id-type="doi">10.1177/1523422318756954</pub-id></mixed-citation></ref>
<ref id="ref72"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Rodrigues</surname><given-names>F.</given-names></name> <name><surname>Figueiredo</surname><given-names>N.</given-names></name> <name><surname>Jacinto</surname><given-names>M.</given-names></name> <name><surname>Monteiro</surname><given-names>D.</given-names></name> <name><surname>Morou&#x00E7;o</surname><given-names>P.</given-names></name></person-group> (<year>2023</year>). <article-title>Social-cognitive theories to explain physical activity</article-title>. <source>Educ. Sci.</source> <volume>13</volume>:<fpage>122</fpage>. doi: <pub-id pub-id-type="doi">10.3390/educsci13020122</pub-id></mixed-citation></ref>
<ref id="ref73"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Rosenkranz</surname><given-names>R. R.</given-names></name> <name><surname>Ridley</surname><given-names>K.</given-names></name> <name><surname>Guagliano</surname><given-names>J. M.</given-names></name> <name><surname>Rosenkranz</surname><given-names>S. K.</given-names></name></person-group> (<year>2023</year>). <article-title>Physical activity capability, opportunity, motivation and behavior in youth settings: theoretical framework to guide physical activity leader interventions</article-title>. <source>Int. Rev. Sport Exerc. Psychol.</source> <volume>16</volume>, <fpage>529</fpage>&#x2013;<lpage>553</lpage>. doi: <pub-id pub-id-type="doi">10.1080/1750984X.2021.1904434</pub-id></mixed-citation></ref>
<ref id="ref74"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Rutberg</surname><given-names>S.</given-names></name> <name><surname>Nyberg</surname><given-names>L.</given-names></name> <name><surname>Castelli</surname><given-names>D.</given-names></name> <name><surname>Lindqvist</surname><given-names>A.-K.</given-names></name></person-group> (<year>2020</year>). <article-title>Grit as perseverance in physical activity participation</article-title>. <source>Int. J. Environ. Res. Public Health</source> <volume>17</volume>:<fpage>17</fpage>. doi: <pub-id pub-id-type="doi">10.3390/ijerph17030807</pub-id>, <pub-id pub-id-type="pmid">32012973</pub-id></mixed-citation></ref>
<ref id="ref75"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Ryan</surname><given-names>R. M.</given-names></name> <name><surname>Deci</surname><given-names>E.</given-names></name></person-group> (<year>2000</year>). <article-title>Self-determination theory and the facilitation of intrinsic motivation, social development, and well-being</article-title>. <source>Am. Psychol.</source> <volume>55</volume>, <fpage>68</fpage>&#x2013;<lpage>78</lpage>. doi: <pub-id pub-id-type="doi">10.1037/0003-066x.55.1.68</pub-id>, <pub-id pub-id-type="pmid">11392867</pub-id></mixed-citation></ref>
<ref id="ref76"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Sabouripour</surname><given-names>F.</given-names></name> <name><surname>Roslan</surname><given-names>S.</given-names></name> <name><surname>Ghiami</surname><given-names>Z.</given-names></name> <name><surname>Memon</surname><given-names>M.</given-names></name></person-group> (<year>2021</year>). <article-title>Mediating role of self-efficacy in the relationship between optimism, psychological well-being, and resilience among Iranian students</article-title>. <source>Front. Psychol.</source> <volume>12</volume>:<fpage>675645</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpsyg.2021.675645</pub-id>, <pub-id pub-id-type="pmid">34194372</pub-id></mixed-citation></ref>
<ref id="ref77"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Sanci</surname><given-names>L.</given-names></name> <name><surname>Williams</surname><given-names>I.</given-names></name> <name><surname>Russell</surname><given-names>M.</given-names></name> <name><surname>Chondros</surname><given-names>P.</given-names></name> <name><surname>Duncan</surname><given-names>A.-M.</given-names></name> <name><surname>Tarzia</surname><given-names>L.</given-names></name> <etal/></person-group>. (<year>2022</year>). <article-title>Towards a health promoting university: descriptive findings on health, wellbeing and academic performance amongst university students in Australia</article-title>. <source>BMC Public Health</source> <volume>22</volume>:<fpage>2430</fpage>. doi: <pub-id pub-id-type="doi">10.1186/s12889-022-14690-9</pub-id>, <pub-id pub-id-type="pmid">36575509</pub-id></mixed-citation></ref>
<ref id="ref78"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Santos</surname><given-names>A. C.</given-names></name> <name><surname>Willumsen</surname><given-names>J.</given-names></name> <name><surname>Meheus</surname><given-names>F.</given-names></name> <name><surname>Ilbawi</surname><given-names>A.</given-names></name> <name><surname>Bull</surname><given-names>F. C.</given-names></name></person-group> (<year>2023</year>). <article-title>The cost of inaction on physical inactivity to public health-care systems: a population-attributable fraction analysis</article-title>. <source>Lancet Glob. Health</source> <volume>11</volume>, <fpage>e32</fpage>&#x2013;<lpage>e39</lpage>. doi: <pub-id pub-id-type="doi">10.1016/S2214-109X(22)00464-8</pub-id>, <pub-id pub-id-type="pmid">36480931</pub-id></mixed-citation></ref>
<ref id="ref79"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Schwarzer</surname><given-names>R.</given-names></name> <name><surname>Renner</surname><given-names>B.</given-names></name></person-group> (<year>2000</year>). <article-title>Social-cognitive predictors of health behavior: action self-efficacy and coping self-efficacy</article-title>. <source>Health Psychol.</source> <volume>19</volume>, <fpage>487</fpage>&#x2013;<lpage>495</lpage>. doi: <pub-id pub-id-type="doi">10.1037/0278-6133.19.5.487</pub-id>, <pub-id pub-id-type="pmid">11007157</pub-id></mixed-citation></ref>
<ref id="ref80"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Shengyao</surname><given-names>Y.</given-names></name> <name><surname>Salarzadeh Jenatabadi</surname><given-names>H.</given-names></name> <name><surname>Mengshi</surname><given-names>Y.</given-names></name> <name><surname>Minqin</surname><given-names>C.</given-names></name> <name><surname>Xuefen</surname><given-names>L.</given-names></name> <name><surname>Mustafa</surname><given-names>Z.</given-names></name></person-group> (<year>2024</year>). <article-title>Academic resilience, self-efficacy, and motivation: the role of parenting style</article-title>. <source>Sci. Rep.</source> <volume>14</volume>:<fpage>5571</fpage>. doi: <pub-id pub-id-type="doi">10.1038/s41598-024-55530-7</pub-id>, <pub-id pub-id-type="pmid">38448465</pub-id></mixed-citation></ref>
<ref id="ref81"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Silva</surname><given-names>R. M. F.</given-names></name> <name><surname>Mendon&#x00E7;a</surname><given-names>C. R.</given-names></name> <name><surname>Azevedo</surname><given-names>V. D.</given-names></name> <name><surname>Memon</surname><given-names>A. R.</given-names></name> <name><surname>Noll</surname><given-names>P. R. E. S.</given-names></name> <name><surname>Noll</surname><given-names>M.</given-names></name></person-group> (<year>2022</year>). <article-title>Barriers to high school and university students&#x2019; physical activity: a systematic review</article-title>. <source>PLoS One</source> <volume>17</volume>:<fpage>e0265913</fpage>. doi: <pub-id pub-id-type="doi">10.1371/journal.pone.0265913</pub-id>, <pub-id pub-id-type="pmid">35377905</pub-id></mixed-citation></ref>
<ref id="ref82"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Stiller</surname><given-names>M.</given-names></name> <name><surname>Ebener</surname><given-names>M.</given-names></name> <name><surname>Hasselhorn</surname><given-names>H. M.</given-names></name></person-group> (<year>2023</year>). <article-title>Job quality continuity and change in later working life and the mediating role of mental and physical health on employment participation</article-title>. <source>J. Labour Mark. Res.</source> <volume>57</volume>:<fpage>12</fpage>. doi: <pub-id pub-id-type="doi">10.1186/s12651-023-00339-6</pub-id></mixed-citation></ref>
<ref id="ref83"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Strain</surname><given-names>T.</given-names></name> <name><surname>Flaxman</surname><given-names>S.</given-names></name> <name><surname>Guthold</surname><given-names>R.</given-names></name> <name><surname>Semenova</surname><given-names>E.</given-names></name> <name><surname>Cowan</surname><given-names>M.</given-names></name> <name><surname>Riley</surname><given-names>L. M.</given-names></name> <etal/></person-group>. (<year>2024</year>). <article-title>National, regional, and global trends in insufficient physical activity among adults from 2000 to 2022: a pooled analysis of 507 population-based surveys with 5&#x00B7;7 million participants</article-title>. <source>Lancet Glob. Health</source> <volume>12</volume>, <fpage>e1232</fpage>&#x2013;<lpage>e1243</lpage>. doi: <pub-id pub-id-type="doi">10.1016/S2214-109X(24)00150-5</pub-id>, <pub-id pub-id-type="pmid">38942042</pub-id></mixed-citation></ref>
<ref id="ref84"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Sulla</surname><given-names>F.</given-names></name> <name><surname>Aquino</surname><given-names>A.</given-names></name> <name><surname>Rollo</surname><given-names>D.</given-names></name></person-group> (<year>2022</year>). <article-title>University students&#x2019; online learning during COVID-19: the role of grit in academic performance</article-title>. <source>Front. Psychol.</source> <volume>13</volume>:<fpage>13</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpsyg.2022.825047</pub-id>, <pub-id pub-id-type="pmid">35222206</pub-id></mixed-citation></ref>
<ref id="ref85"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Tross</surname><given-names>L. F. S.</given-names></name> <name><surname>Magalh&#x00E3;es Dias</surname><given-names>H.</given-names></name> <name><surname>Callegari Zanetti</surname><given-names>M.</given-names></name></person-group> (<year>2024</year>). <article-title>Maintaining exercise in fitness Centre settings: insights from the physical activity maintenance theory</article-title>. <source>Int. J. Qual. Stud. Health Well-being</source> <volume>19</volume>:<fpage>2409832</fpage>. doi: <pub-id pub-id-type="doi">10.1080/17482631.2024.2409832</pub-id>, <pub-id pub-id-type="pmid">39359074</pub-id></mixed-citation></ref>
<ref id="ref86"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Sluijs</surname><given-names>EMF</given-names><prefix>van</prefix></name> <name><surname>Ekelund</surname><given-names>U</given-names></name> <name><surname>Crochemore-Silva</surname><given-names>I</given-names></name> <name><surname>Guthold</surname><given-names>R</given-names></name> <name><surname>Ha</surname><given-names>A</given-names></name> <name><surname>Lubans</surname><given-names>D</given-names></name> <etal/></person-group> <year>2021</year>; <volume>398</volume>:<fpage>429</fpage>&#x2013;<lpage>442</lpage>. doi: <pub-id pub-id-type="doi">10.1016/S0140-6736(21)01259-9</pub-id> <article-title>Physical activity behaviours in adolescence: current evidence and opportunities for intervention</article-title>. <source>Lancet</source>.</mixed-citation></ref>
<ref id="ref87"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Vella</surname><given-names>S. A.</given-names></name> <name><surname>Aidman</surname><given-names>E.</given-names></name> <name><surname>Teychenne</surname><given-names>M.</given-names></name> <name><surname>Smith</surname><given-names>J. J.</given-names></name> <name><surname>Swann</surname><given-names>C.</given-names></name> <name><surname>Rosenbaum</surname><given-names>S.</given-names></name></person-group> (<year>2023</year>). <article-title>Optimising the effects of physical activity on mental health and wellbeing: a joint consensus statement from sports medicine Australia and the Australian Psychological Society</article-title>. <source>J. Sci. Med. Sport</source> <volume>26</volume>, <fpage>132</fpage>&#x2013;<lpage>139</lpage>. doi: <pub-id pub-id-type="doi">10.1016/j.jsams.2023.01.001</pub-id>, <pub-id pub-id-type="pmid">36737260</pub-id></mixed-citation></ref>
<ref id="ref88"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Wan</surname><given-names>H.</given-names></name> <name><surname>Huang</surname><given-names>W.</given-names></name> <name><surname>Zhang</surname><given-names>W.</given-names></name> <name><surname>Hu</surname><given-names>C.</given-names></name></person-group> (<year>2025</year>). <article-title>Exploring adolescents&#x2019; social anxiety, physical activity, and core self-evaluation: a latent profile and mediation approach</article-title>. <source>IJMHP</source> <volume>27</volume>, <fpage>1611</fpage>&#x2013;<lpage>1626</lpage>. doi: <pub-id pub-id-type="doi">10.32604/ijmhp.2025.070457</pub-id></mixed-citation></ref>
<ref id="ref89"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Wang</surname><given-names>K.</given-names></name> <name><surname>Li</surname><given-names>Y.</given-names></name> <name><surname>Zhang</surname><given-names>T.</given-names></name> <name><surname>Luo</surname><given-names>J.</given-names></name></person-group> (<year>2022</year>). <article-title>The relationship among college students&#x2019; physical exercise, self-efficacy, emotional intelligence, and subjective well-being</article-title>. <source>Int. J. Environ. Res. Public Health</source> <volume>19</volume>:<fpage>19</fpage>. doi: <pub-id pub-id-type="doi">10.3390/ijerph191811596</pub-id>, <pub-id pub-id-type="pmid">36141869</pub-id></mixed-citation></ref>
<ref id="ref90"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Wang</surname><given-names>R.</given-names></name> <name><surname>Shirvan</surname><given-names>M. E.</given-names></name> <name><surname>Taherian</surname><given-names>T.</given-names></name></person-group> (<year>2021</year>). <article-title>Perseverance of effort and consistency of interest: a longitudinal perspective</article-title>. <source>Front. Psychol.</source> <volume>12</volume>:<fpage>12</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpsyg.2021.743414</pub-id>, <pub-id pub-id-type="pmid">34526944</pub-id></mixed-citation></ref>
<ref id="ref91"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Welch</surname><given-names>D. C.</given-names></name> <name><surname>West</surname><given-names>R.</given-names></name></person-group> (<year>1995</year>). <article-title>Self-efficacy and mastery: its application to issues of environmental control, cognition, and aging</article-title>. <source>Dev. Rev.</source> <volume>15</volume>, <fpage>150</fpage>&#x2013;<lpage>171</lpage>. doi: <pub-id pub-id-type="doi">10.1006/drev.1995.1007</pub-id></mixed-citation></ref>
<ref id="ref92"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Wilhite</surname><given-names>K.</given-names></name> <name><surname>Booker</surname><given-names>B.</given-names></name> <name><surname>Huang</surname><given-names>B.-H.</given-names></name> <name><surname>Antczak</surname><given-names>D.</given-names></name> <name><surname>Corbett</surname><given-names>L.</given-names></name> <name><surname>Parker</surname><given-names>P.</given-names></name> <etal/></person-group>. (<year>2023</year>). <article-title>Combinations of physical activity, sedentary behavior, and sleep duration and their associations with physical, psychological, and educational outcomes in children and adolescents: a systematic review</article-title>. <source>Am. J. Epidemiol.</source> <volume>192</volume>, <fpage>665</fpage>&#x2013;<lpage>679</lpage>. doi: <pub-id pub-id-type="doi">10.1093/aje/kwac212</pub-id>, <pub-id pub-id-type="pmid">36516992</pub-id></mixed-citation></ref>
<ref id="ref93"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Woo</surname><given-names>S. E.</given-names></name> <name><surname>Hofmans</surname><given-names>J.</given-names></name> <name><surname>Wille</surname><given-names>B.</given-names></name> <name><surname>Tay</surname><given-names>L.</given-names></name></person-group> (<year>2024</year>). <article-title>Person-centered modeling: techniques for studying associations between people rather than variables</article-title>. <source>Annu. Rev. Organ. Psychol. Organ. Behav.</source> <volume>11</volume>, <fpage>453</fpage>&#x2013;<lpage>480</lpage>. doi: <pub-id pub-id-type="doi">10.1146/annurev-orgpsych-110721-045646</pub-id></mixed-citation></ref>
<ref id="ref94"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Xie</surname><given-names>L.</given-names></name> <name><surname>Ma</surname><given-names>W.</given-names></name> <name><surname>Du</surname><given-names>K.</given-names></name> <name><surname>Huang</surname><given-names>Y.</given-names></name> <name><surname>Li</surname><given-names>A.</given-names></name> <name><surname>Wang</surname><given-names>H.</given-names></name> <etal/></person-group>. (<year>2025</year>). <article-title>Association between exercise self-efficacy and physical activity in elderly individuals: a systematic review and meta-analysis</article-title>. <source>Front. Psychol.</source> <volume>16</volume>:<fpage>1525277</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpsyg.2025.1525277</pub-id>, <pub-id pub-id-type="pmid">40557371</pub-id></mixed-citation></ref>
<ref id="ref95"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Ye</surname><given-names>S.</given-names></name> <name><surname>Lin</surname><given-names>X.</given-names></name> <name><surname>Jenatabadi</surname><given-names>H. S.</given-names></name> <name><surname>Samsudin</surname><given-names>N.</given-names></name> <name><surname>Ke</surname><given-names>C.</given-names></name> <name><surname>Ishak</surname><given-names>Z.</given-names></name></person-group> (<year>2024</year>). <article-title>Emotional intelligence impact on academic achievement and psychological well-being among university students: the mediating role of positive psychological characteristics</article-title>. <source>BMC Psychol.</source> <volume>12</volume>:<fpage>389</fpage>. doi: <pub-id pub-id-type="doi">10.1186/s40359-024-01886-4</pub-id></mixed-citation></ref>
<ref id="ref96"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Yu</surname><given-names>H.</given-names></name> <name><surname>Zhu</surname><given-names>T.</given-names></name> <name><surname>Tian</surname><given-names>J.</given-names></name> <name><surname>Zhang</surname><given-names>G.</given-names></name> <name><surname>Wang</surname><given-names>P.</given-names></name> <name><surname>Chen</surname><given-names>J.</given-names></name> <etal/></person-group>. (<year>2024</year>). <article-title>Physical activity and self-efficacy in college students: the mediating role of grit and the moderating role of gender</article-title>. <source>PeerJ</source> <volume>12</volume>:<fpage>e17422</fpage>. doi: <pub-id pub-id-type="doi">10.7717/peerj.17422</pub-id>, <pub-id pub-id-type="pmid">38803579</pub-id></mixed-citation></ref>
<ref id="ref97"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Yue</surname><given-names>X.</given-names></name> <name><surname>Wang</surname><given-names>X.</given-names></name> <name><surname>Lu</surname><given-names>L.</given-names></name> <name><surname>Hu</surname><given-names>C.</given-names></name></person-group> (<year>2025</year>). <article-title>Associations between negative emotions and eating behaviors in older adults: a network analysis and the mediating role of physical activity</article-title>. <source>Front. Public Health</source> <volume>13</volume>:<fpage>1677170</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpubh.2025.1677170</pub-id>, <pub-id pub-id-type="pmid">41306871</pub-id></mixed-citation></ref>
<ref id="ref98"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Yuqing</surname><given-names>Y.</given-names></name> <name><surname>Huang</surname><given-names>W.</given-names></name> <name><surname>Hu</surname><given-names>C.</given-names></name> <name><surname>Zhang</surname><given-names>W.</given-names></name> <name><surname>Chen</surname><given-names>B.</given-names></name></person-group> (<year>2025</year>). <article-title>Relationships among anxiety, psychological resilience, and physical activity in university students: variable-centered and person-centred perspectives</article-title>. <source>Front. Psychol.</source> <volume>16</volume>:<fpage>1694344</fpage>. doi: <pub-id pub-id-type="doi">10.3389/fpsyg.2025.1694344</pub-id></mixed-citation></ref>
<ref id="ref99"><mixed-citation publication-type="journal"><person-group person-group-type="author"><name><surname>Zhou</surname><given-names>S.</given-names></name> <name><surname>Hou</surname><given-names>H.</given-names></name></person-group> (<year>2025</year>). <article-title>The interplay of self-efficacy, grit, and metacognition in shaping work engagement among EFL teachers: a comparative study of mainland China and Hong Kong</article-title>. <source>BMC Psychology.</source> <volume>13</volume>:<fpage>468</fpage>. doi: <pub-id pub-id-type="doi">10.1186/s40359-025-02761-6</pub-id>, <pub-id pub-id-type="pmid">40325446</pub-id></mixed-citation></ref>
</ref-list>
<fn-group>
<fn fn-type="custom" custom-type="edited-by" id="fn0003">
<p>Edited by: <ext-link ext-link-type="uri" xlink:href="https://loop.frontiersin.org/people/435983/overview">Pedro Morou&#x00E7;o</ext-link>, Cl&#x00ED;nica Espregueira - FIFA Medical Centre of Excellence, Portugal</p>
</fn>
<fn fn-type="custom" custom-type="reviewed-by" id="fn0004">
<p>Reviewed by: <ext-link ext-link-type="uri" xlink:href="https://loop.frontiersin.org/people/2607284/overview">Imed Chokri</ext-link>, University of Sfax, Tunisia</p>
<p><ext-link ext-link-type="uri" xlink:href="https://loop.frontiersin.org/people/2945687/overview">Nurten Elkin</ext-link>, Gelisim University, T&#x00FC;rkiye</p>
</fn>
</fn-group>
<fn-group>
<fn id="fn0001"><label>1</label><p><ext-link xlink:href="https://www.wjx.cn/" ext-link-type="uri">https://www.wjx.cn/</ext-link></p></fn>
</fn-group>
</back>
</article>