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<front>
<journal-meta>
<journal-id journal-id-type="publisher-id">Front. Sports Act. Living</journal-id>
<journal-title>Frontiers in Sports and Active Living</journal-title>
<abbrev-journal-title abbrev-type="pubmed">Front. Sports Act. Living</abbrev-journal-title>
<issn pub-type="epub">2624-9367</issn>
<publisher>
<publisher-name>Frontiers Media S.A.</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.3389/fspor.2025.1529252</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Sports and Active Living</subject>
<subj-group>
<subject>Original Research</subject>
</subj-group>
</subj-group>
</article-categories>
<title-group>
<article-title>Association between the attentional network efficiency and change of direction speed ability in young male Indian footballers</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author" equal-contrib="yes"><name><surname>Chatterjee</surname><given-names>Debabrata</given-names></name>
<xref ref-type="aff" rid="aff1"><sup>1</sup></xref>
<xref ref-type="author-notes" rid="an1"><sup>&#x2020;</sup></xref><uri xlink:href="https://loop.frontiersin.org/people/2897565/overview"/><role content-type="https://credit.niso.org/contributor-roles/conceptualization/"/><role content-type="https://credit.niso.org/contributor-roles/formal-analysis/"/><role content-type="https://credit.niso.org/contributor-roles/investigation/"/><role content-type="https://credit.niso.org/contributor-roles/methodology/"/><role content-type="https://credit.niso.org/contributor-roles/software/"/><role content-type="https://credit.niso.org/contributor-roles/validation/"/><role content-type="https://credit.niso.org/contributor-roles/visualization/"/><role content-type="https://credit.niso.org/contributor-roles/writing-original-draft/"/></contrib>
<contrib contrib-type="author"><name><surname>Dasgupta</surname><given-names>Santi Ranjan</given-names></name>
<xref ref-type="aff" rid="aff2"><sup>2</sup></xref>
<xref ref-type="aff" rid="aff3"><sup>3</sup></xref><uri xlink:href="https://loop.frontiersin.org/people/2897638/overview" /><role content-type="https://credit.niso.org/contributor-roles/conceptualization/"/><role content-type="https://credit.niso.org/contributor-roles/formal-analysis/"/><role content-type="https://credit.niso.org/contributor-roles/investigation/"/><role content-type="https://credit.niso.org/contributor-roles/methodology/"/><role content-type="https://credit.niso.org/contributor-roles/resources/"/><role content-type="https://credit.niso.org/contributor-roles/writing-review-editing/"/></contrib>
<contrib contrib-type="author" corresp="yes"><name><surname>Dutta</surname><given-names>Arkadeb</given-names></name>
<xref ref-type="aff" rid="aff1"><sup>1</sup></xref>
<xref ref-type="aff" rid="aff4"><sup>4</sup></xref>
<xref ref-type="corresp" rid="cor1">&#x002A;</xref>
<xref ref-type="author-notes" rid="fn001"><sup>&#x2021;</sup></xref><uri xlink:href="https://loop.frontiersin.org/people/2897468/overview" /><role content-type="https://credit.niso.org/contributor-roles/conceptualization/"/><role content-type="https://credit.niso.org/contributor-roles/data-curation/"/><role content-type="https://credit.niso.org/contributor-roles/formal-analysis/"/><role content-type="https://credit.niso.org/contributor-roles/investigation/"/><role content-type="https://credit.niso.org/contributor-roles/methodology/"/><role content-type="https://credit.niso.org/contributor-roles/software/"/><role content-type="https://credit.niso.org/contributor-roles/supervision/"/><role content-type="https://credit.niso.org/contributor-roles/validation/"/><role content-type="https://credit.niso.org/contributor-roles/writing-review-editing/"/></contrib>
</contrib-group>
<aff id="aff1"><label><sup>1</sup></label><institution>Neuro-Cognition Laboratory, Department of Sports Science and Yoga, Ramakrishna Mission Vivekananda Educational and Research Institute (RKMVERI)</institution>, <addr-line>Belur Math</addr-line>, <country>India</country></aff>
<aff id="aff2"><label><sup>2</sup></label><institution>West Bengal State Council of Sports, Department of Youth Services and Sports, Govt. of West Bengal</institution>, <addr-line>Kolkata</addr-line>, <country>India</country></aff>
<aff id="aff3"><label><sup>3</sup></label><institution>Department of Sports Medicine, East Bengal Football Club, Maidan Tent</institution>, <addr-line>Kolkata</addr-line>, <country>India</country></aff>
<aff id="aff4"><label><sup>4</sup></label><institution>Department of Biomedical Science &#x0026; Technology, School of Biological Sciences, Ramakrishna Mission Vivekananda Educational and Research Institute (RKMVERI)</institution>, <addr-line>Narendrapur</addr-line>, <country>India</country></aff>
<author-notes>
<fn fn-type="edited-by"><p><bold>Edited by:</bold> Pedro Forte, Higher Institute of Educational Sciences of the Douro, Portugal</p></fn>
<fn fn-type="edited-by"><p><bold>Reviewed by:</bold> Jos&#x00E9; Eduardo Teixeira, Instituto Polit&#x00E9;cnico da Guarda, Portugal</p>
<p>Ant&#x00F3;nio Miguel Monteiro, Instituto Polit&#x00E9;cnico de Bragan&#x00E7;a, Portugal</p></fn>
<corresp id="cor1"><label>&#x002A;</label><bold>Correspondence:</bold> Arkadeb Dutta <email>arkadeb@gm.rkmvu.ac.in</email>; <email>arkadeb77@gmail.com</email></corresp>
<fn fn-type="equal" id="an1"><label><sup>&#x2020;</sup></label><p>These authors share first authorship</p></fn>
<fn fn-type="other" id="fn001"><label><sup>&#x2021;</sup></label><p>ORCID Arkadeb Dutta <ext-link ext-link-type="uri" xlink:href="http://orcid.org/0000-0001-5550-1679">orcid.org/0000-0001-5550-1679</ext-link></p></fn>
</author-notes>
<pub-date pub-type="epub"><day>29</day><month>01</month><year>2025</year></pub-date>
<pub-date pub-type="collection"><year>2025</year></pub-date>
<volume>7</volume><elocation-id>1529252</elocation-id>
<history>
<date date-type="received"><day>16</day><month>11</month><year>2024</year></date>
<date date-type="accepted"><day>13</day><month>01</month><year>2025</year></date>
</history>
<permissions>
<copyright-statement>&#x00A9; 2025 Chatterjee, Dasgupta and Dutta.</copyright-statement>
<copyright-year>2025</copyright-year><copyright-holder>Chatterjee, Dasgupta and Dutta</copyright-holder><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0/">
<p>This is an open-access article distributed under the terms of the <ext-link ext-link-type="uri" xlink:href="http://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.</p></license>
</permissions>
<abstract><sec><title>Introduction</title>
<p>Interactions between cognitive functions and sports-specific motor actions are crucial for strategic sports performance. Change of direction speed (CODS) is an essential motor ability required for rapid positional maneuvering in football. Although CODS lacks perceptual judgment and anticipatory elements of higher-level cognition, its connection with fundamental cognitive abilities cannot be undermined. The attentional networks is the basis of the fundamental cognitive abilities controlling complex behavior. The present study aimed to investigate the association between CODS ability and the efficiency of alerting, orienting, and executive components of the attentional networks, and decision-making in footballers.</p>
</sec><sec><title>Methods</title>
<p>Seventy-eight male footballers (age: 15.4&#x2009;&#x00B1;&#x2009;0.87 years, BMI: 19.4&#x2009;&#x00B1;&#x2009;1.98&#x2005;kg/m<sup>2</sup>) during pre-season completed a battery of field tests comprising Illinois agility test (IAT), 30&#x2005;m sprint, standing broad jump, and Yo-Yo test. Attentional network components and decision-making ability were tested in the participants with computerized Attentional Network Test-Interactions (ANT-I) and choice reaction time (CRT) tasks in the laboratory set-up. A 2(alerting) &#x00D7;3 (orienting) &#x00D7;2 (executive) repeated measures ANOVA tested interactions between the attentional network components. Partial correlation was conducted between the physical (field tests) and cognitive test scores adjusted for age and BMI.</p>
</sec><sec><title>Results</title>
<p>CODS ability measured with IAT was significantly correlated [<italic>r</italic>&#x2009;&#x003D;&#x2009;&#x002B;0.507 (large), <italic>p</italic>&#x2009;&#x003C;&#x2009;0.05] with the executive control network only, nor with alerting [<italic>r</italic>&#x2009;&#x003D;&#x2009;&#x2212;0.039 (trivial), <italic>p</italic>&#x2009;&#x003E;&#x2009;0.05] and orienting [<italic>r</italic>&#x2009;&#x003D;&#x2009;&#x002B;&#x2009;0.051 (trivial), <italic>p</italic>&#x2009;&#x003E;&#x2009;0.05] networks and neither the CRT task performance [<italic>r</italic>&#x2009;&#x003D;&#x2009;&#x2212;0.011 (trivial), <italic>p</italic>&#x2009;&#x003E;&#x2009;0.05].</p>
</sec><sec><title>Discussion</title>
<p>A strong positive association between executive control and preplanned CODS indicates better interference control by the attentional network. The later may be a factor for faster CODS execution in young footballers. Hence, it may be concluded that better CODS ability is possibly an outcome of innate competence in executive control of the attentional network in young male footballers. These findings attempted to fill the knowledge gap by highlighting the importance of the attentional network functions in modulating CODS ability. The outcomes can benefit football training by implementing ANT-I test in sports-specific settings and for screening purposes. However in the future, a large-scale study including female footballers is required to strengthen this claim further.</p>
</sec>
</abstract>
<kwd-group>
<kwd>CODS</kwd>
<kwd>football</kwd>
<kwd>attentional networks</kwd>
<kwd>executive control</kwd>
<kwd>cognition</kwd>
</kwd-group><counts>
<fig-count count="3"/>
<table-count count="5"/><equation-count count="0"/><ref-count count="69"/><page-count count="11"/><word-count count="0"/></counts><custom-meta-wrap><custom-meta><meta-name>section-at-acceptance</meta-name><meta-value>Sport Psychology</meta-value></custom-meta></custom-meta-wrap>
</article-meta>
</front>
<body><sec id="s1" sec-type="intro"><label>1</label><title>Introduction</title>
<p>Cognitive abilities at optimal levels are essential for superior performance in the athletes of open-skill, strategic sports (<xref ref-type="bibr" rid="B1">1</xref>, <xref ref-type="bibr" rid="B2">2</xref>). The higher-order cognitive elements such as visual scanning, judgment, planning, and decision-making are required to process relevant information in the dynamic, externally-paced environment to provide appropriate behavioral responses in the shortest possible time (<xref ref-type="bibr" rid="B3">3</xref>&#x2013;<xref ref-type="bibr" rid="B5">5</xref>). Executive functioning and attentional control are the fundamental cognitive abilities, which are the basis of higher-order cognitive processes implemented in sports-specific environments (<xref ref-type="bibr" rid="B1">1</xref>, <xref ref-type="bibr" rid="B6">6</xref>). The executive functions have three core mental disciplines that monitor and continuously update the information of a situation, switching to relevant stimuli in the environment and selectively allocating attention to them by restricting interference from irrelevant thoughts of action (<xref ref-type="bibr" rid="B7">7</xref>). Therefore, it becomes the source of goal-directed behavior.</p>
<p>Football is an open-skill, strategic sport characterized by short bouts of intermittent sprints, rapid change of direction and velocity, and agility (<xref ref-type="bibr" rid="B8">8</xref>, <xref ref-type="bibr" rid="B9">9</xref>). There are several evidences showing that executive functioning is comparatively better in expert footballers than in low-level players and novices (<xref ref-type="bibr" rid="B10">10</xref>&#x2013;<xref ref-type="bibr" rid="B13">13</xref>). Expert players are also efficient in integrating higher-order cognitive capacities with motor coordination in game-specific environments for faster and more accurate anticipatory response (<xref ref-type="bibr" rid="B2">2</xref>). These complex cognitive skills are regulated by the basic executive functions indicating that athletes must depend on their executive functions to excel in performance (<xref ref-type="bibr" rid="B6">6</xref>, <xref ref-type="bibr" rid="B7">7</xref>).</p>
<p>Cognitive and motor skills in sports-specific settings are mutually related (<xref ref-type="bibr" rid="B14">14</xref>). Hence, it is becoming increasingly important to identify these cognitive functions involved in sports-specific motor behavior in football (<xref ref-type="bibr" rid="B14">14</xref>, <xref ref-type="bibr" rid="B15">15</xref>). This approach can assist in recognizing talents based on the processing efficiency of brain networks regulating these cognitive attributes. Moreover, a detailed understanding about the interaction between these brain networks and motor abilities can help to improve sports-specific actions with standard drills or dual-task training program (<xref ref-type="bibr" rid="B16">16</xref>).</p>
<p>CODS defined as &#x201C;the ability to decelerate, reverse or change movement direction and accelerate again&#x201D;, is an essential motor skill frequently performed by footballers during competitive games for gaining, holding ball possession evading opponent players, and during off-the ball situations (<xref ref-type="bibr" rid="B17">17</xref>, <xref ref-type="bibr" rid="B18">18</xref>). CODS ability is a critical parameter for elevating a player&#x0027;s performance along with endurance, speed, and explosive strength (<xref ref-type="bibr" rid="B19">19</xref>, <xref ref-type="bibr" rid="B20">20</xref>). In a football match, CODS occur in every 2&#x2013;4&#x2005;s regardless of playing positions of the footballers (<xref ref-type="bibr" rid="B21">21</xref>). Footballers can perform 726&#x2009;&#x00B1;&#x2009;203 changes in CODS during a match, and with 609&#x2009;&#x00B1;&#x2009;193 turns in completely opposite direction or 90&#x00B0; to the left or right (<xref ref-type="bibr" rid="B22">22</xref>). CODS is also an important attribute for grouping adolescent sub-elite players with cluster analysis (<xref ref-type="bibr" rid="B23">23</xref>). Hence, CODS ability is crucial for on-field performance prediction (<xref ref-type="bibr" rid="B24">24</xref>), and for identifying elite performers in football (<xref ref-type="bibr" rid="B25">25</xref>). Several standardized CODS drills are recommended by coaches and sports science experts for the long-term development of motor skills and abilities in football (<xref ref-type="bibr" rid="B20">20</xref>). However, in real game scenario the change of direction executed most of the time is a reactive response to unpredictable stimuli and therefore varies from the standard CODS tests (<xref ref-type="bibr" rid="B26">26</xref>). Standard CODS ability is a closed-skill technique and devoid of anticipatory action (<xref ref-type="bibr" rid="B26">26</xref>). Due to the multiple changes in direction with high speed in a preplanned course, standard CODS ability tests lack higher-level brain processing for perceptual judgment and reactive decision-making (<xref ref-type="bibr" rid="B26">26</xref>).</p>
<p>For this reason, CODS training is now believed to be ecologically less valid relative to agility drills for adapting players to situations mimicking match scenarios where there is a demand for reactive response (<xref ref-type="bibr" rid="B27">27</xref>). However, it would be premature to draw an inference that there are no possible links between CODS ability and other cognitive disciplines. A qualitative evaluation of externally focused attention on CODS was promising (<xref ref-type="bibr" rid="B28">28</xref>). A recent study showed that footballers trained with cognitive-motor dual-task developed better CODS ability (<xref ref-type="bibr" rid="B29">29</xref>). These findings have provided hints about the involvement of cognitive abilities in preplanned CODS or when navigating in the sports-specific environment in a football match (<xref ref-type="bibr" rid="B16">16</xref>, <xref ref-type="bibr" rid="B29">29</xref>). However, the nature of basic cognitive components and their regulatory brain networks in controlling CODS are unknown. In this context, the present study has explored a possible intersection of the attentional networks with CODS ability in young footballers. This is because the attentional networks form the basis of the fundamental cognitive abilities and span across diverse brain regions regulating attention and executive functioning (<xref ref-type="bibr" rid="B30">30</xref>). The findings can improve our limited knowledge about the importance of attentional control and executive functions in CODS behavior. This can have significant implications for sports psychology and athlete development.</p>
<p>It must be mentioned that there are difficulties in designing paradigms to measure core executive functioning during on-field CODS ability or other domain-specific tasks (<xref ref-type="bibr" rid="B2">2</xref>). An alternative approach, reported earlier for examining executive functioning in physical activity and sports, can be by using standard laboratory-based computerized tasks of executive functioning in athletes and associating with the on-field CODS ability measures (<xref ref-type="bibr" rid="B11">11</xref>).</p>
<p>For this purpose, a conventional computerized task of assessing the attentional networks can be used. The attentional network comprises three separate functional components, namely alertness, orienting, and executive control (<xref ref-type="bibr" rid="B31">31</xref>). Each of these components runs at three anatomically distinct brain regions that are interconnected. The alerting component can be intrinsic or phasic and seats at the locus coeruleus and the parietal and right frontal cortex (<xref ref-type="bibr" rid="B31">31</xref>). The orienting component can be reflexive or goal-directed, localized in the frontal eye fields, the superior colliculus, the temporal parietal junction, and the superior parietal cortex (<xref ref-type="bibr" rid="B31">31</xref>). The executive component consists of complex mental operations for monitoring and interference control using the basal ganglia, anterior cingulate, and lateral ventral prefrontal cortex (<xref ref-type="bibr" rid="B32">32</xref>). Each of these components and their interaction is crucial since the functional deficit of networks can cause serious cognitive and neuropsychological health concerns (<xref ref-type="bibr" rid="B33">33</xref>). Earlier a study showed that generally athletes from strategic sports exhibit better attentional network functioning (<xref ref-type="bibr" rid="B34">34</xref>). However, the contribution of the individual network components on CODS ability and other physical attributes of football is not well known.</p>
<p>Hence, we hypothesize that footballers with greater efficiency in the attentional networks are better performers in CODS-ability performance measures. To test this hypothesis, we aim to investigate the association between CODS ability with each of the attentional network components using the attentional network test- interactions (ANT-I) task at the intra-individual level in young male professional footballers.</p>
</sec>
<sec id="s2"><label>2</label><title>Materials and Methods</title>
<sec id="s2a"><label>2.1</label><title>Study design</title>
<p>A cross-sectional design on young male football players was implemented to explore the associations between the cognitive parameters with the physical attributes namely, agility, lower limb explosive power, speed, and endurance ability. Eligibility criteria were male footballers from the same socioeconomic status and with self-reported normal vision and no neurological deficits.</p>
</sec>
<sec id="s2b"><label>2.2</label><title>Subjects</title>
<p>Eighty-eight, young, male football players affiliated with an elite football academy (accredited by the All India Football Federation) were registered for this study. The weekly schedule of all the participants comprised five field-based and one gym-based training session, a maximum of one practice match. Participants had at least three years of playing experience in football. Ten athletes were excluded due to lack of continuity or injury in the middle of the study. Finally, the tests were conducted on 78 athletes having an age range between 14 and 17 years (age: 15.4&#x2009;&#x00B1;&#x2009;0.87 years, height: 167.2&#x2009;&#x00B1;&#x2009;5.86&#x2005;cm, body mass: 54.4&#x2009;&#x00B1;&#x2009;6.58&#x2005;kg; BMI: 19.4&#x2009;&#x00B1;&#x2009;1.98&#x2005;kg/m<sup>2</sup>), including 9 goalkeepers, 17 defenders, 20 defensive midfielders, 19 attacking midfielders, and 13 forwards. We selected these age groups because attentional network components become developed and reaches adulthood stability (<xref ref-type="bibr" rid="B35">35</xref>). The age groups are also suitable to identify and nurture future elite athletes (<xref ref-type="bibr" rid="B36">36</xref>). At the time of conducting the test battery, all players were injury-free. The tests were executed in two alternate days. All the tests were conducted during the preparatory phase in the academy. The on-field testing sessions were performed between 9 and 11 am to avoid diurnal variation. At the beginning of the testing, footballers performed a routine warm-up for approximately 10&#x2005;min which included a general warm-up, dynamic stretching, and specific warm-up exercises. An active rest of 3&#x2013;5&#x2005;min was provided before the testing. The protocol followed the guidelines of the Declaration of Helsinki and was approved by the Institutional Ethics Committee (IEC/2023/07/SSY01). Prior to the commencement of the study, participants and their parents were informed about the purpose, benefits, and risks of the investigation. Written consents signed by the legal guardians of the participants were collected.</p>
</sec>
<sec id="s2c"><label>2.3</label><title>Sample size estimation</title>
<p><italic>A priori</italic> sample size estimation for all the correlation analysis was conducted under a bivariate normal model using G&#x002A;POWER 3.1.9.7 (<xref ref-type="bibr" rid="B37">37</xref>). The minimal sample size was estimated to be 67 at the 0.05 alpha level with the power set at 0.8, and using Cohen&#x0027;s medium effect size of 0.3 (<xref ref-type="bibr" rid="B38">38</xref>). With a 10&#x0025; dropout estimation, the total sample size required was at least 74. For repeated measures within-factors ANOVA used in the attentional network interaction task, a medium effect size of 0.25 was considered (<xref ref-type="bibr" rid="B38">38</xref>). The estimated total sample size was twenty with the number of groups and measures set as two and six respectively.</p>
</sec>
<sec id="s2d"><label>2.4</label><title>Procedures</title>
<sec id="s2d1"><label>2.4.1</label><title>Cognitive measures</title>
<p>The computerized cognitive tests used were an ANT-I task and a CRT task, designed and presented in Psychtoolbox 3 (<xref ref-type="bibr" rid="B39">39</xref>) using custom-written Matlab codes (Matlab 2018a version software).</p>
<sec id="s2d1a"><label>2.4.1.1</label><title>Attentional network interaction task (ANT-I)</title>
<p>ANT-I, a modified version of the Attentional Network Task was used for measuring attentional network indices (<xref ref-type="bibr" rid="B30">30</xref>, <xref ref-type="bibr" rid="B40">40</xref>). Previous literature indicated ANT-I as a convenient measure to assess attentional networks with high reliability (<xref ref-type="bibr" rid="B41">41</xref>). ANT-I can assess higher-order complex cognitive actions and has an advantage over other tests that measure the processing speed of a simple reaction time in sports (<xref ref-type="bibr" rid="B30">30</xref>, <xref ref-type="bibr" rid="B42">42</xref>).</p>
<p>ANT-I was conducted in a dimly lit room devoid of distracting noise. Participants were seated 60&#x2005;cm away from a 15-inch color monitor used for displaying the ANT-I task stimuli. Before recording, participants were instructed about the task and the given practice session where they had to respond quickly and correctly by pressing the &#x201C;C&#x201D; (left) or &#x201C;M&#x201D; (right) keys on a standard computer QWERTY keyboard, based on the direction of the central arrow (0.55&#x00B0; long pointing either left or right) flanked by two other irrelevant but identical arrows on either side (0.06&#x00B0; away from each other).</p>
<p>The task began with a set of trials and each trial consisted of sets of events (<xref ref-type="fig" rid="F1">Figure&#x00A0;1</xref>). Each trial began with the appearance of a cross-hair (&#x201C;&#x002B;&#x201D;) for variable duration between 400 and 1,600&#x2005;ms. Participants were encouraged strongly to fix gaze on the central crosshair. This was followed by a presentation of a 2&#x2005;KHz alerting tone for 50&#x2005;ms duration in half of the trials. After a 450&#x2005;ms stimulus onset asynchrony (SOA), a visual orienting cue in the form of an asterisk (&#x201C;&#x002A;&#x201D;) was presented above or below the fixation point for 100&#x2005;ms in two-thirds of the trials. After another 500&#x2005;ms SOA, the target arrow with flankers was displayed in identical or opposite locations of the cue until a response was made or for a maximum of 1,700&#x2005;ms. After the response, the fixation point was shown for a variable duration adjusted from the participant&#x0027;s RT and the fixation time at the beginning of the trial so that every trial duration was maintained constant at 4,450&#x2005;ms. Participants first completed a practice block, followed by three experimental blocks of 48 trials each without feedback, with approximately 1-min breaks in between. The ANT-I session lasted around 15&#x2005;min.</p>
<fig id="F1" position="float"><label>Figure 1</label>
<caption><p>Schematic illustration of the attentional network test&#x2014;interactions (ANT-I). The direction of the diagonal arrow in bold represents the sequence in a trial starting with variable fixation point duration (FP or FPD) between 400 and 1,600&#x2005;ms, followed by any of the two alerting state (<inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="fspor-07-1529252-i001.tif"/>: tone; <inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="fspor-07-1529252-i002.tif"/>; no tone); then any three orienting conditions (no-cue, cue, invalid-cue) [see illustration at the top right corner]; and finally the reaction time window (RT) with two congruency levels [see illustration at bottom left corner for 4 possible combinations of congruent and incongruent flankers]. Cue and invalid cue is provide with &#x201C;&#x002A;&#x201D;.</p></caption>
<graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="fspor-07-1529252-g001.tif"/>
</fig>
<p>Each block had two alerting levels with half with alerting tone and the remaining half with no tone (alerting vs. non-alerting); three cued conditions with cue matching target location (cued), cue opposite to target location (uncued invalid cue) and no-cue trials; two congruency levels with congruent trials (50&#x0025; of trials) with four flanking pointing in the same direction as the target arrow, and incongruent trials (the remaining 50&#x0025;) featured flankers pointing in the opposite direction. The congruency level designates the executive control network of attention. Cued location and alerting levels define the orienting and alerting networks of attention respectively. The network scores and their interactions are assessed by recording response accuracy (i.e., percentage of errors) and reaction times (RTs). According to previous literature, RT ranging between 200&#x2005;ms and 1,200&#x2005;ms were considered for analysis of the three network scores (<xref ref-type="bibr" rid="B41">41</xref>). Previous ANT-I studies in normal subjects and young male footballers reported the attentional network scores usually in the range of 24&#x2013;72&#x2005;ms (<xref ref-type="bibr" rid="B30">30</xref>, <xref ref-type="bibr" rid="B41">41</xref>, <xref ref-type="bibr" rid="B43">43</xref>).</p>
</sec>
<sec id="s2d1b"><label>2.4.1.2</label><title>Choice reaction task (CRT)</title>
<p>Participants were seated about 60&#x2005;cm from a 15-inch color monitor in a dimly lit, noise-free room. They were instructed to focus on a crosshair (&#x201C;&#x002B;&#x201D;) in the center of the screen with their right index finger placed on the &#x201C;M&#x201D; key, and the left index finger placed on the &#x201C;C&#x201D; key. Two boxes, one present to the left and the other to the right of the &#x201C;&#x002B;&#x201D; and an &#x201C;X&#x201D; may appear in either box randomly but with equal probability in a total of sixty trials. Participant had to press the &#x201C;M&#x201D; key as quickly as possible with the right finger if the &#x201C;X&#x201D; appears in the right box or press the &#x201C;C&#x201D; key with the left finger if the &#x201C;X&#x201D; appears in the left box. Twenty trials were given as practice before the test. Inter-trial interval was set at 500&#x2005;ms, with a minimum of 100&#x2005;ms and a maximum of 1,500&#x2005;ms allowed for motor response. The total procedure lasted for about 5&#x2005;min. RT and number of correct responses were recorded.</p>
</sec>
</sec>
<sec id="s2d2"><label>2.4.2</label><title>Physical tests</title>
<sec id="s2d2a"><label>2.4.2.1</label><title>CODS</title>
<p>The Illinois Agility Test (IAT) generally is a highly reliable and valid test to measure the CODS ability in athletes (<xref ref-type="bibr" rid="B44">44</xref>). Previously, IAT tested in young soccer players is now considered as a standard measure for quantifying CODS ability for high reliability (<xref ref-type="bibr" rid="B17">17</xref>). In the test, four cones were positioned to denote the starting point, two turning points, and the finishing point. Additionally, four more cones were arranged in the center of the course at equal intervals (3.3&#x2005;m) (<xref ref-type="bibr" rid="B45">45</xref>). Participants were in a prone position at the starting cone and initiated the run following the &#x201C;Go&#x201D; command. The IAT path comprising multidirectional movements is illustrated in <xref ref-type="fig" rid="F2">Figure&#x00A0;2</xref>. The trial is complete when the athlete crosses the finish line and no cones are knocked over. The total time taken from start to finish was recorded using an electronic hand-held timer by an experienced tester with earlier established reliability (<xref ref-type="bibr" rid="B46">46</xref>). The reported range of completion time of IAT in male young footballers is usually between 16 and 21&#x2005;s (<xref ref-type="bibr" rid="B17">17</xref>, <xref ref-type="bibr" rid="B44">44</xref>).</p>
<fig id="F2" position="float"><label>Figure 2</label>
<caption><p>Schematic representation of the Illinois agility test. The test is set up with four cones forming 10&#x2005;m by 5&#x2005;m area. Cone A, marks start; Cones B and C mark the turning spots; Cone D marks the finish; the arrows in bold marks the route and direction of the pre-planned path.</p></caption>
<graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="fspor-07-1529252-g002.tif"/>
</fig>
</sec>
<sec id="s2d2b"><label>2.4.2.2</label><title>Endurance</title>
<p>Yo-Yo Intermittent Recovery Test 2 (YYIR2) was conducted to assess maximal aerobic capacity (VO<sub>2</sub>max) indirectly on-field. The test is advantageous as it is simple, cost-effective, reliable, and can be administered to multiple players simultaneously (<xref ref-type="bibr" rid="B47">47</xref>). The test utilizes high-intensity intermittent bouts of exercise and thus meets the specific demands of football (<xref ref-type="bibr" rid="B48">48</xref>). Briefly, the YYIR2 consists of repeated 40&#x2005;m (2&#x2009;&#x00D7;&#x2009;20&#x2005;m) runs between markers set 20&#x2005;m apart, which have to be performed at progressively increasing speeds dictated by an audio signal (<xref ref-type="bibr" rid="B48">48</xref>). Athletes also performed 10&#x2005;s of active recovery between each running bout, consisting of a 10&#x2005;m (2&#x2009;&#x00D7;&#x2009;5&#x2005;m) walk. The test was terminated if the player failed to reach the end line within the given time frame on two consecutive occasions or reached volitional exhaustion. The maximal distances reached, counted by total laps completed, were used to estimate VO<sub>2</sub>max using a standard equation (<xref ref-type="bibr" rid="B47">47</xref>). The physiological response to YYIR2 test recorded previously in male professional footballers were in the range of 43.2&#x2013;57.2&#x2005;ml/kg/min (<xref ref-type="bibr" rid="B48">48</xref>).</p>
</sec>
<sec id="s2d2c"><label>2.4.2.3</label><title>Explosive strength</title>
<p>Lower limb explosive power is an important physical factor in football. Standing broad jump (SBJ) is high reliable field-test and is commonly used to measure lower limb explosive power in youth (<xref ref-type="bibr" rid="B49">49</xref>). SBJ Starting from an erect position with feet placed parallel and knees bent at nearly a 90&#x00B0; angle, the athlete executed SBJ. All athletes were instructed to jump as far as possible and land on both feet without falling backward. The straight-line distance was measured from the starting line to the back of the heel or the closest body part to the start line after the jump with a measuring tape (<xref ref-type="bibr" rid="B50">50</xref>). The distance was recorded to the nearest centimeter. Each participant performed a total of three trials, among which the longest jump was used for analysis. A minimum of 2&#x2005;min of rest was given between each trial. In young male footballers, SBJ ranges 1.7&#x2013;2.25&#x2005;m (<xref ref-type="bibr" rid="B51">51</xref>).</p>
</sec>
<sec id="s2d2d"><label>2.4.2.4</label><title>Speed</title>
<p>Speed, reflected in sprinting ability, is one of the crucial performance measures in professional football (<xref ref-type="bibr" rid="B52">52</xref>). A 30&#x2005;m sprint test was conducted to assess sprinting ability. Athletes continued to run at maximum speed following the &#x201C;Go&#x201D; command on a 30&#x2005;m straight track. The run time was recorded using a stopwatch. The minimal time out of three trials was used for data analysis. The participants were given a 3-min rest break in between trials sufficient for a full recovery. A previous study on 30&#x2005;m sprint in professional footballers reported an average completion time of about 4.2&#x2005;s (<xref ref-type="bibr" rid="B53">53</xref>).</p>
</sec>
</sec>
</sec>
<sec id="s2e"><label>2.5</label><title>Statistical analyses</title>
<p>Data analysis was carried out in Matlab version 2018a and statistical analyses were conducted using IBM SPSS Statistics v27 Software (SPSS Inc., Chicago, IL). The mean RT (ms) and error rate of each participant across all of the 12 combinations of the ANT-I task were calculated. The mean of the CRT and physical test parameters across the participants were also calculated. Normality was checked using Kolmogorov-Smirnov test. A 2 (alerting: tone/no tone) &#x00D7;3 (orienting: valid/invalid/no cue) &#x00D7;2 (executive control: congruent/incongruent) within-factor repeated measures ANOVA was performed in normally distributed RT from the correct trials (<xref ref-type="bibr" rid="B30">30</xref>). Where necessary the Greenhouse-Geisser correction was applied to adjust the lack of sphericity in the repeated measures ANOVA. The Bonferroni confidence interval adjustment for main effects and simple main effects for interaction between the factors were performed. To understand the magnitude of differences, the effect size was calculated as partial ETA-squared (<italic>&#x03B7;</italic><sub>p</sub><sup>2</sup>) with the magnitude of 0.01 considered as small, 0.06 and 0.14 as medium and large respectively (<xref ref-type="bibr" rid="B54">54</xref>). Attentional network scores for alertness, orienting, and execution were also calculated for correlational analysis according to a previously established method (<xref ref-type="bibr" rid="B41">41</xref>). The alertness network score was calculated by subtracting the RT of tone from the no-tone condition. The orienting network score was obtained by subtracting the RT of a valid cue from an invalid cue. The executive control network score was obtained by subtracting the RT of the congruent condition from the incongruent condition. Higher scores in alerting and orienting indicate better efficiency in these networks. Whereas, the executive network is efficient if its network score is low (<xref ref-type="bibr" rid="B55">55</xref>). Pearson&#x0027;s partial correlation was used to assess the associations between the cognitive and physical variables with adjusted age and BMI (if any). Spearman&#x0027;s partial correlation coefficient was calculated if found to be not normally distributed. The magnitude of the correlation coefficient was considered small (0.1&#x2009;&#x2264;&#x2009;<italic>r</italic>&#x2009;&#x003C;<sans-serif>&#x2009;0</sans-serif>.3), moderate (0.3&#x2009;&#x2264;&#x2009;<italic>r</italic>&#x2009;&#x003C;<sans-serif>&#x2009;0</sans-serif>.5), large (0.5&#x2009;&#x2264;&#x2009;<italic>r</italic>&#x2009;&#x003C;<sans-serif>&#x2009;0</sans-serif>.7), very large (0.7&#x2009;&#x2264;&#x2009;<italic>r</italic>&#x2009;&#x003C;<sans-serif>&#x2009;0</sans-serif>.9) and nearly perfect (<italic>r</italic>&#x2009;&#x2265;<sans-serif>&#x2009;0</sans-serif>.9). An alpha level of <italic>p</italic>&#x2009;&#x2264;&#x2009;0.05 was used to determine statistical significance.</p>
</sec>
</sec>
<sec id="s3" sec-type="results"><label>3</label><title>Results</title>
<sec id="s3a"><label>3.1</label><title>Attentional network functioning</title>
<p>RTs with extreme values (lower than 200&#x2005;ms and higher than 1,200&#x2005;ms) were eliminated and correct trials were tested under the repeated measure ANOVA. Significant main effects were found in the RT for alerting [F (1.77)&#x2009;&#x003D;&#x2009;124.04, <italic>p</italic>&#x2009;&#x003C;&#x2009;0.001, <italic>&#x03B7;</italic><sub>p</sub><sup>2</sup>&#x2009;&#x003D;&#x2009;0.62], orienting [F (2,154)&#x2009;&#x003D;&#x2009;123.40, <italic>p</italic>&#x2009;&#x003C;&#x2009;0.001, <italic>&#x03B7;</italic><sub>p</sub><sup>2</sup>&#x2009;&#x003D;&#x2009;0.62], and executive control [F (1.77)&#x2009;&#x003D;&#x2009;584.10, <italic>p</italic>&#x2009;&#x003C;&#x2009;0.001, <italic>&#x03B7;</italic><sub>p</sub><sup>2</sup>&#x2009;&#x003D;&#x2009;0.88] networks. Responses were faster in tone than no-tone condition, in the valid-cued than invalid cue condition, and in the congruent from incongruent trials presented in <xref ref-type="table" rid="T1">Table&#x00A0;1</xref>. The interaction between the alerting and executive control networks was significant [F (1.77)&#x2009;&#x003D;&#x2009;5.05, <italic>p</italic>&#x2009;&#x003C;&#x2009;0.05, <italic>&#x03B7;</italic><sub>p</sub><sup>2</sup>&#x2009;&#x003D;&#x2009;0.06]. The congruency effect was significantly lower in the no-tone condition than in the tone condition (<xref ref-type="fig" rid="F3">Figure&#x00A0;3A</xref>). The congruency effect is the differences in the RT of the incongruent and congruent trials representing the executive control network. The orienting&#x00D7;executive control interaction was also found to be significant [F (2,154)&#x2009;&#x003D;&#x2009;21.65, <italic>p</italic>&#x2009;&#x003C;&#x2009;0.001, <italic>&#x03B7;</italic><sub>p</sub><sup>2</sup>&#x2009;&#x003D;&#x2009;0.22]. The congruency effect was larger in invalid than the valid conditions (<xref ref-type="fig" rid="F3">Figure&#x00A0;3A</xref>). A significant interaction was also found between Alerting and Orienting networks [F (2,154)&#x2009;&#x003D;&#x2009;17.31, <italic>p</italic>&#x2009;&#x003C;&#x2009;0.001, <italic>&#x03B7;</italic><sub>p</sub><sup>2</sup>&#x2009;&#x003D;&#x2009;0.18], indicating the orienting effect in the tone condition is larger than no tone condition (<xref ref-type="fig" rid="F3">Figure&#x00A0;3B</xref>). Three-way interactions between the alerting, orienting, and executive control networks were not significant thereby exhibiting a similar pattern with previously published works (<xref ref-type="bibr" rid="B30">30</xref>). The mean network scores for the executive control, orienting and alerting networks were 53.9&#x2005;ms, 28.9&#x2005;ms, and 45.6&#x2005;ms respectively. It was not possible to analyze the accuracy (error rate) owing to the lack of variance (0&#x0025; errors) in some experimental conditions (<xref ref-type="bibr" rid="B56">56</xref>).</p>
<table-wrap id="T1" position="float"><label>Table 1</label>
<caption><p>Mean RT expressed in ms with the percentage of errors in the parenthesis for each condition<bold>.</bold></p></caption>
<table frame="hsides" rules="groups">
<colgroup>
<col align="left"/>
<col align="center"/>
<col align="center"/>
<col align="center"/>
<col align="center"/>
<col align="center"/>
<col align="center"/>
</colgroup>
<thead>
<tr>
<th valign="top" align="left" rowspan="2"/>
<th valign="top" align="center" colspan="3">No alerting tone</th>
<th valign="top" align="center" colspan="3">Alerting tone</th>
</tr>
<tr>
<th valign="top" align="center">No cue</th>
<th valign="top" align="center">Cued</th>
<th valign="top" align="center">Uncued</th>
<th valign="top" align="center">No cue</th>
<th valign="top" align="center">Cued</th>
<th valign="top" align="center">Uncued</th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Congruent</td>
<td valign="top" align="center">549.8<break/>(2.30)</td>
<td valign="top" align="center">504.4<break/>(2.06)</td>
<td valign="top" align="center">517.2<break/>(1.92)</td>
<td valign="top" align="center">492.9<break/>(2.75)</td>
<td valign="top" align="center">474.0<break/>(2.2)</td>
<td valign="top" align="center">501.0<break/>(2.0)</td>
</tr>
<tr>
<td valign="top" align="left">Incongruent</td>
<td valign="top" align="center">582.7<break/>(3.2)</td>
<td valign="top" align="center">544.0<break/>(3.2)</td>
<td valign="top" align="center">594.9<break/>(5.0)</td>
<td valign="top" align="center">546.7<break/>(4.2)</td>
<td valign="top" align="center">521.4<break/>(3.8)</td>
<td valign="top" align="center">579.2<break/>(5.4)</td>
</tr>
</tbody>
</table>
</table-wrap>
<fig id="F3" position="float"><label>Figure 3</label>
<caption><p>Interactions among the attentional network indices. Interactions between the variables. <bold>(A)</bold> Congruency (mean RT for incongruent trials- mean RT for congruent trials) as a function of cueing (cued trials vs. uncued trials) and alerting (trials with alerting tone vs. trials without alerting tone). <bold>(B)</bold> Cueing (mean RT for uncued trials- mean RT for cued trials) as a function of alerting (trials with an alerting tone vs. trials without an alerting tone). Error bars represent SD and &#x201C;&#x002A;&#x201D; denotes <italic>p</italic>&#x2009;&#x003C;&#x2009;0.001.</p></caption>
<graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="fspor-07-1529252-g003.tif"/>
</fig>
</sec>
<sec id="s3b"><label>3.2</label><title>Choice reaction time</title>
<p>The group RT and the accuracy (expressed as&#x0025; of correct response) were 0.36&#x2009;&#x00B1;&#x2009;0.04&#x2005;s and 96.9&#x2009;&#x00B1;&#x2009;3.97&#x0025; respectively.</p>
</sec>
<sec id="s3c"><label>3.3</label><title>Physical tests</title>
<p>The group means of the results obtained during different tests are presented in <xref ref-type="table" rid="T2">Table&#x00A0;2</xref>.</p>
<table-wrap id="T2" position="float"><label>Table 2</label>
<caption><p>Physical test results (mean&#x2009;&#x00B1;&#x2009;SD).</p></caption>
<table frame="hsides" rules="groups">
<colgroup>
<col align="left"/>
<col align="center"/>
</colgroup>
<thead>
<tr>
<th valign="top" align="left">Physical tests</th>
<th valign="top" align="center">Values</th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Illinois agility test (s)</td>
<td valign="top" align="center">16.1&#x2009;&#x00B1;&#x2009;0.78</td>
</tr>
<tr>
<td valign="top" align="left">30&#x2005;m sprint (s)</td>
<td valign="top" align="center">4.2&#x2009;&#x00B1;&#x2009;0.29</td>
</tr>
<tr>
<td valign="top" align="left">VO<sub>2</sub> max (ml/kg/min)</td>
<td valign="top" align="center">53.1&#x2009;&#x00B1;&#x2009;2.22</td>
</tr>
<tr>
<td valign="top" align="left">Standing broad jump (m)</td>
<td valign="top" align="center">2.2&#x2009;&#x00B1;&#x2009;0.26</td>
</tr>
</tbody>
</table>
</table-wrap>
</sec>
<sec id="s3d"><label>3.4</label><title>Associations within the physical test parameters</title>
<p>A significant small, positive correlation was found between the CODS ability time and 30&#x2005;m sprint time (<italic>p</italic>&#x2009;&#x003C;&#x2009;0.05). A strong negative correlation was found between the 30&#x2005;m sprint time and the SBJ (<italic>p</italic>&#x2009;&#x003C;&#x2009;0.01) (<xref ref-type="table" rid="T3">Table&#x00A0;3</xref>). No other correlations were found among the physical tests.</p>
<table-wrap id="T3" position="float"><label>Table 3</label>
<caption><p>Correlation coefficients of the physical tests adjusted for BMI and age.</p></caption>
<table frame="hsides" rules="groups">
<colgroup>
<col align="left"/>
<col align="center"/>
<col align="center"/>
<col align="center"/>
<col align="center"/>
</colgroup>
<thead>
<tr>
<th valign="top" align="left"/>
<th valign="top" align="center">Standing broad jump (m)</th>
<th valign="top" align="center">Illinois agility test (s)</th>
<th valign="top" align="center">30&#x2005;m sprint (s)</th>
<th valign="top" align="center">VO<sub>2</sub> max (ml/kg/min)</th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Standing broad jump (m)</td>
<td valign="top" align="center">&#x2013;</td>
<td valign="top" align="center"/>
<td valign="top" align="center"/>
<td valign="top" align="center"/>
</tr>
<tr>
<td valign="top" align="left">Illinois agility test (s)</td>
<td valign="top" align="center">&#x2212;0.195</td>
<td valign="top" align="center">&#x2013;</td>
<td valign="top" align="center"/>
<td valign="top" align="center"/>
</tr>
<tr>
<td valign="top" align="left">30&#x2005;m sprint (s)</td>
<td valign="top" align="center"><bold><italic>&#x2212;0</italic></bold><italic>.</italic><bold><italic>399</italic></bold><xref ref-type="table-fn" rid="table-fn2">&#x002A;</xref></td>
<td valign="top" align="center"><bold><italic>0.233</italic></bold><xref ref-type="table-fn" rid="table-fn3">&#x002A;&#x002A;</xref></td>
<td valign="top" align="center">&#x2013;</td>
<td valign="top" align="center"/>
</tr>
<tr>
<td valign="top" align="left">VO<sub>2</sub> max (ml/kg/min)</td>
<td valign="top" align="center"><italic>0</italic>.<italic>074</italic></td>
<td valign="top" align="center"><italic>0.057</italic></td>
<td valign="top" align="center"><italic>&#x2212;0.201</italic></td>
<td valign="top" align="center">&#x2013;</td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<fn id="table-fn1"><p>Values presented in italics and plain text indicate Spearman&#x0027;s and Pearson&#x0027;s correlation coefficient respectively; bold value indicates significant correlation. VO<sub>2</sub> max, maximal oxygen consumption capacity; BMI, body mass index.</p></fn>
<fn id="table-fn2"><label>&#x002A;</label>
<p>Correlation is significant at the 0.01 level (2-tailed).</p></fn>
<fn id="table-fn3"><label>&#x002A;&#x002A;</label>
<p>Correlation is significant at the 0.05 level (2-tailed).</p></fn>
</table-wrap-foot>
</table-wrap>
</sec>
<sec id="s3e"><label>3.5</label><title>Associations between physical test parameters and cognitive test</title>
<p>The executive index of the attentional network has a significantly large, positive correlation with the CODS ability total time (<italic>r</italic>&#x2009;&#x003D;&#x2009;0.507, <italic>p</italic>&#x2009;&#x003C;&#x2009;0.01) and not with other physical test parameters (<xref ref-type="table" rid="T4">Table&#x00A0;4</xref>). There was no significant correlation between the physical test parameters and CRT (<italic>r</italic>&#x2009;&#x003D;&#x2009;&#x2212;0.011, <italic>p</italic>&#x2009;&#x003E;&#x2009;0.05) (<xref ref-type="table" rid="T4">Table&#x00A0;4</xref>). The attentional network scores were also not mutually correlated indicating their mutually independent nature (<xref ref-type="table" rid="T5">Table&#x00A0;5</xref>). BMI and age were also not correlated with the attentional network components, CRT, and agility.</p>
<table-wrap id="T4" position="float"><label>Table 4</label>
<caption><p>Correlation coefficients among physical and cognitive tests adjusted for BMI and age.</p></caption>
<table frame="hsides" rules="groups">
<colgroup>
<col align="left"/>
<col align="center"/>
<col align="center"/>
<col align="center"/>
<col align="center"/>
</colgroup>
<thead>
<tr>
<th valign="top" align="left"/>
<th valign="top" align="center">Standing broad jump (m)</th>
<th valign="top" align="center">Illinois agility test (s)</th>
<th valign="top" align="center">30&#x2005;m sprint (s)</th>
<th valign="top" align="center">VO<sub>2</sub> max (ml/kg/min)</th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Alertness index</td>
<td valign="top" align="center"><italic>&#x2212;0</italic><italic>.</italic><italic>149</italic></td>
<td valign="top" align="center"><italic>&#x2212;0</italic>.<italic>039</italic></td>
<td valign="top" align="center"><italic>0</italic>.<italic>090</italic></td>
<td valign="top" align="center"><italic>0</italic>.<italic>080</italic></td>
</tr>
<tr>
<td valign="top" align="left">Orientation index</td>
<td valign="top" align="center">&#x2212;0.051</td>
<td valign="top" align="center">0.051</td>
<td valign="top" align="center"><italic>0</italic>.<italic>130</italic></td>
<td valign="top" align="center"><italic>0</italic>.<italic>076</italic></td>
</tr>
<tr>
<td valign="top" align="left">Executive control index</td>
<td valign="top" align="center">&#x2212;0.101</td>
<td valign="top" align="center">.<bold>507<sup>&#x256A;</sup></bold></td>
<td valign="top" align="center"><italic>0</italic>.<italic>171</italic></td>
<td valign="top" align="center"><italic>&#x2212;0</italic>.<italic>087</italic></td>
</tr>
<tr>
<td valign="top" align="left">Choice reaction time</td>
<td valign="top" align="center">0.040</td>
<td valign="top" align="center">&#x2212;0.011</td>
<td valign="top" align="center"><italic>&#x2212;0</italic>.<italic>065</italic></td>
<td valign="top" align="center"><italic>&#x2212;0</italic>.<italic>014</italic></td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<fn id="table-fn4"><p>Values presented in italics and plain text indicate Spearman&#x0027;s and Pearson&#x0027;s correlation coefficient respectively; bold value indicates significant correlation.</p></fn>
<fn id="table-fn5"><p>BMI, body mass index.</p></fn>
<fn id="table-fn6"><label>&#x002A;</label>
<p>Correlation is significant at the 0.01 level (2-tailed).</p></fn>
</table-wrap-foot>
</table-wrap>
<table-wrap id="T5" position="float"><label>Table 5</label>
<caption><p>Correlation coefficients among the attentional network scores.</p></caption>
<table frame="hsides" rules="groups">
<colgroup>
<col align="left"/>
<col align="center"/>
<col align="center"/>
<col align="center"/>
</colgroup>
<thead>
<tr>
<th valign="top" align="left"/>
<th valign="top" align="center">Alertness index</th>
<th valign="top" align="center">Orientation index</th>
<th valign="top" align="center">Executive control index</th>
</tr>
</thead>
<tbody>
<tr>
<td valign="top" align="left">Alertness index</td>
<td valign="top" align="center">&#x2013;</td>
<td valign="top" align="center"/>
<td valign="top" align="center"/>
</tr>
<tr>
<td valign="top" align="left">Orientation index</td>
<td valign="top" align="center"><italic>0.108</italic></td>
<td valign="top" align="center">&#x2013;</td>
<td valign="top" align="center"/>
</tr>
<tr>
<td valign="top" align="left">Executive control index</td>
<td valign="top" align="center"><italic>&#x2212;0.116</italic></td>
<td valign="top" align="center">0.143</td>
<td valign="top" align="center">&#x2013;</td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<fn id="table-fn7"><p>Values presented in plain text and italics indicate Pearson&#x0027;s and Spearman&#x0027;s correlation coefficient respectively.</p></fn>
</table-wrap-foot>
</table-wrap>
</sec>
</sec>
<sec id="s4" sec-type="discussion"><label>4</label><title>Discussion</title>
<p>The results of the present study show that CODS ability has a strong, positive, and significant association with the executive control of the attentional network in male young footballers. The positive correlation means that higher the efficiency in the executive attentional network the lesser would be the CODS completion time in the Illinois agility task. For the executive network, a lower network score indicates higher efficiency. This network score is the difference in time taken to identify congruent and incongruent flankers in the ANT-I task. Minimal difference in reaction time explains higher resolving ability or smaller inference control cost, and hence greater efficiency. Taking into consideration the influence of age and BMI on physical activity (<xref ref-type="bibr" rid="B57">57</xref>), the association was verified by adjusting their effects. To the best of our knowledge, this is probably the first evidence specifying an association between the executive control of the attentional networks and the CODS ability. The alerting and the orienting networks are not found to be correlated with CODS, indicating that they may not be independently associated with CODS performance. For alerting component, the possible explanation might be that auditory warning signals used to voluntarily engage attention for responding in ANT-I has no additional advantage in a preplanned CODS execution. Alternatively, it could be that the participants already have the level of alertness sufficient for the task. The orienting component of ANT-I is purely exogenous (involuntary) in nature due to the presence of uninformative (invalid) spatial cues and therefore might not found to be associated with endogenously (voluntarily) driven CODS.</p>
<p>CODS ability training is considered to be necessary for conditioning young professional footballers with specific movement patterns and velocities, which replicate the maneuvers of competitive situations of a game. CODS is a closed-skill technique for developing motor proficiency in pattered movement (<xref ref-type="bibr" rid="B20">20</xref>). This makes it crucial for the long-term development of football-related skills for enhancing performance. Earlier, CODS ability was considered a subtype of agility due to the speed and direction-change elements. However, the lack of higher-order cognitive skills for reactive response to a target stimulus has made CODS an independent attribute and different from agility (<xref ref-type="bibr" rid="B27">27</xref>). We found that the decision-making speed in our CRT task was not correlated with the CODS, which is in agreement with previous report (<xref ref-type="bibr" rid="B15">15</xref>). It has been argued whether standard CODS drills can be included to enhance cognitive skills executed in sports environments as they lack decision-making and anticipatory components (<xref ref-type="bibr" rid="B20">20</xref>, <xref ref-type="bibr" rid="B26">26</xref>, <xref ref-type="bibr" rid="B27">27</xref>). Our findings have shown that CODS ability is linked with the executive control efficiency of the attentional network, essential for reducing uncertainty from task-irrelevant stimuli and thereby facilitating decision-making.</p>
<p>Attentional control is important in competitive and strategic environment of football (<xref ref-type="bibr" rid="B34">34</xref>, <xref ref-type="bibr" rid="B58">58</xref>). It allocates and maintains the focus during sports-specific actions (<xref ref-type="bibr" rid="B58">58</xref>). The rationale behind relating the attentional networks with CODS ability is based on the assumption that athletes are efficient in channeling their focus of attention towards a complex motor-skill task to enhance performance. A previous study based on qualitative data has supported that external attention can improve the performance of the change of direction and acceleration task (<xref ref-type="bibr" rid="B28">28</xref>). However, this was in the context of directing the focus externally from internally with verbal instructions for better task performance. Our study contributed to further understanding of attentional control on the CODS ability by using a quantitative approach. Our data indicate that enhanced CODS performance might be due to the strong connection with the executive control of the attentional network.</p>
<p>We have chosen the ANT-I task due to the advantage of assessing all three components of attention and their mutual interaction in a single test. ANT-I uses a modified Flanker test to examine the attentional processing in resolving interference either with or without the support of temporal and spatial expectancy regarding target appearance (<xref ref-type="bibr" rid="B30">30</xref>). The stimulus expectancy using the alerting and orienting attentional networks is thought to improve response readiness (<xref ref-type="bibr" rid="B30">30</xref>). We found that these networks are independent in nature (<xref ref-type="table" rid="T5">Table&#x00A0;5</xref>) and can have mutual interactions, which replicates the response behavior in the previously published reports (<xref ref-type="bibr" rid="B30">30</xref>, <xref ref-type="bibr" rid="B43">43</xref>, <xref ref-type="bibr" rid="B56">56</xref>). ANT-I test has been popular in sports and exercise-related comparative studies examining attentional functioning (<xref ref-type="bibr" rid="B34">34</xref>, <xref ref-type="bibr" rid="B56">56</xref>). ANT-I has been used earlier to compare attentional functioning between young elite footballers and non-athletes and with static sports discipline including different age groups and experience (<xref ref-type="bibr" rid="B34">34</xref>, <xref ref-type="bibr" rid="B43">43</xref>). These studies have shown higher efficiency of executive control ability in footballers.</p>
<p>We speculated that better motor coordination skills with impulse control could be vital in executing specific movement patterns with high speed in CODS. The executive network is related to monitoring and interference control (<xref ref-type="bibr" rid="B32">32</xref>) which may affect impulse control in complex motor-skill tasks. Interference control is one of the core executive functions that selectively allocates attention over task-relevant stimuli and at the same time suppresses the irrelevant stimuli (<xref ref-type="bibr" rid="B7">7</xref>). The latter could be physical objects, thoughts, and emotions that might interfere with the goal-directed behavior. Therefore, it can be assumed that athletes exhibiting larger interference costs possibly on these distracting on-field factors are more likely to lose response execution speed in the CODS. This possible explanation is supported by the fact that the brain areas involved in motor planning, execution, and impulse control share identical areas that are associated with executive control network functioning of the ANT-I task (<xref ref-type="bibr" rid="B59">59</xref>&#x2013;<xref ref-type="bibr" rid="B61">61</xref>). Another plausible explanation might be that interference control is critical for expert athletes to fix their gaze on target locations of the navigating path during multiple directional changes with high speed to reduce the uncertainty from the interfering objects or obstacles in the environment. Since the safe avoidance strategy during navigation is an important behavior in humans (<xref ref-type="bibr" rid="B62">62</xref>). Our assumption is also supported by the fact that cognition in general is an important regulator of gait and balance in older populations (<xref ref-type="bibr" rid="B63">63</xref>&#x2013;<xref ref-type="bibr" rid="B65">65</xref>).</p>
<p>Since CODS ability is also a crucial physical component for sports performance, its association with speed, explosive power, and endurance were also tested. It was found that CODS ability is positively correlated with speed and in agreement with the previously published reports (<xref ref-type="bibr" rid="B15">15</xref>, <xref ref-type="bibr" rid="B66">66</xref>).</p>
<p>The major strength of the present study is the quantitative estimation of the interference control on motor capabilities that regulate the speed and the multiple changes in the direction of footballers in a predetermined path. Although earlier studies indicated the attentional network functioning in footballers but the association or involvement of specific attentional components were not known. To the best of our knowledge the present study provided first evidence about strong association of the executive control of the attentional network with football-specific CODS.</p>
<p>One of the major limitations of our study is the lack of female athletes that can limit the generalization of our findings. Because, previous literature reported about existing gender differences in perceptual-cognitive abilities in athletes (<xref ref-type="bibr" rid="B11">11</xref>, <xref ref-type="bibr" rid="B67">67</xref>, <xref ref-type="bibr" rid="B68">68</xref>). Male athletes are usually better performers than female athletes in some cognitive tasks (<xref ref-type="bibr" rid="B67">67</xref>, <xref ref-type="bibr" rid="B68">68</xref>). In future it will be interesting to see whether similar association regarding attentional network components with CODS ability in female athletes. The second limitation of the work is the limited sample size. Although the number of participants was registered based on prior sample size estimation, the association could have been more convincing if tested on a larger population of athletes representing several regional football academies across India. The third limitation may be the accountability of the translation of sports-specific cognitive abilities to computer-based laboratory tasks. The method may not be mimicking the complexities of the game-specific environment, which might have interfered with the degree of mental involvement of the athletes in the tasks. This can be addressed by constructing more realistic and ecologically valid tests capturing cognitive abilities in football-specific setting that requires football-specific motor reactivity (<xref ref-type="bibr" rid="B69">69</xref>). The study has taken care of the confounding effects of age and BMI, although it did not consider the other factors as confounding variables such as years of playing experience, quality of sleep, mood, and personality. This could be another limitation of the study.</p>
<p>Future research should take into considerations the inclusion of female athletes, on-field cognitive assessments for strengthening ecological validity. Factors such as training history, sleep quality, and psychological state in future could add valuable insights into the relationship between attentional network functions and CODS in young footballers. It would also be interesting to see whether genetic variation in the young players contribute to attentional network performance in young professional footballers.</p>
</sec>
<sec id="s5"><label>5</label><title>Conclusion &#x0026; practical implications</title>
<p>It can be concluded from the present study that the efficiency of the executive control of the attentional network in young male footballers may have a positive and significant impact on their CODS ability, whereas it has no association with sprint time, endurance, and explosive power. These findings strengthen a generalized view about the importance cognitive factors on sports-specific motor actions. Our findings provide evidence that CODS ability requires faster mental operations for resolving conflict and build-up movement strategies to move rapidly through a pre-planned multiple-direction path. CODS agility technique is critical for the development of football-related skills and abilities. Therefore, the practical application from the findings can be dual training in ANT-I and CODS ability. This feasible approach can be useful in on-field physical assessments for performance evaluation, talent identification, and screening purposes. The study further encourage coaches and sports science practitioners to integrate dual cognitive-motor training designed to improve executive capabilities (conflict resolution, inhibitory control) in football-specific setting. This integration can provide ecological validity and engaging the network components of attention for giving football-specific motor reactions. The implementation holds promise for the long-term development of cognitive-motor skills, agility and performance optimization in competitive football.</p>
</sec>
</body>
<back>
<sec id="s6" sec-type="data-availability"><title>Data availability statement</title>
<p>The raw data supporting the conclusions of this article will be made available by the authors, without undue reservation.</p>
</sec>
<sec id="s7" sec-type="ethics-statement"><title>Ethics statement</title>
<p>The studies involving humans were approved by Ramakrishna Mission Vivekananda Educational and Research Institute. The studies were conducted in accordance with the local legislation and institutional requirements. Written informed consent for participation in this study was provided by the participants&#x0027; legal guardians/next of kin.</p>
</sec>
<sec id="s8" sec-type="author-contributions"><title>Author contributions</title>
<p>DC: Conceptualization, Formal Analysis, Investigation, Methodology, Software, Validation, Visualization, Writing &#x2013; original draft. SRD: Conceptualization, Formal Analysis, Investigation, Methodology, Resources, Writing &#x2013; review &#x0026; editing. AD: Conceptualization, Data curation, Formal Analysis, Investigation, Methodology, Software, Supervision, Validation, Writing &#x2013; review &#x0026; editing.</p>
</sec>
<sec id="s9" sec-type="funding-information"><title>Funding</title>
<p>The author(s) declare that no financial support was received for the research, authorship, and/or publication of this article.</p>
</sec>
<ack><title>Acknowledgments</title>
<p>We offer our gratitude to the honorable Pro-Chancellor of RKMVERI, Swami Atmapriyananda for his kind support. We are thankful to the Department of Youth Services and Sports, Government of West Bengal for their sincere support for this study. We also thank all the officials and coaches of the Bengal Football Academy. We also give our special thanks to the young athletes for their participation in the study. We also thank the University Grants Commission, Government of India for the doctoral research fellowship provided to DC under the UGC, NET Scheme.</p>
</ack>
<sec id="s10" sec-type="COI-statement"><title>Conflict of interest</title>
<p>The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.</p>
</sec>
<sec id="s70" sec-type="ai-statement"><title>Generative AI statement</title>
<p>The author(s) declare that no Generative AI was used in the creation of this manuscript.</p>
</sec>
<sec id="s11" sec-type="disclaimer"><title>Publisher&#x0027;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>
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