en ورزش، تمرین و سلامتی Exercise, Training and Health مقاله اصیل Original Article <div style="text-align: justify;"><strong>Background. </strong>Physical inactivity is a growing public health concern among university students. While physical activity (PA) is linked to cognitive benefits, evidence in emerging adults remains limited.<br> <strong>Objectives. </strong>This study examined cross-sectional associations between PA levels and executive function (EF) components&mdash;inhibitory control, focus/attention, and cognitive flexibility&mdash;among university students in Bangkok, Thailand.<br> <strong>Methods. </strong>A cross-sectional study of 388 undergraduate students (mean age 20.4 &plusmn; 1.6 years) from King Mongkut&rsquo;s University of Technology Thonburi was conducted. PA (vigorous PA [VPA], moderate PA [MPA], sedentary behavior [SB], and sleep duration) was assessed by validated self-reported questionnaire. EF was assessed using the Flanker Task, Trail Making Test Part B (TMT-B), and Design Fluency Test (DFT). Pearson correlations and multiple linear regression were performed.<br> <strong>Results. </strong>VPA and MPA were strongly intercorrelated (r = .549, p < .001). No PA variable was significantly associated with any EF outcome (all p > .05). Cognitive measures were strongly intercorrelated (|r| = .468&ndash;.683, all p < .001). No EF measure significantly predicted VPA, MPA, or MVPA.<br> <strong>Conclusion. </strong>No significant associations were found between habitual PA and EF in Thai university students. Null findings may reflect neurodevelopmental ceiling effects, insufficient exercise dose, and population-specific contextual factors.&nbsp;</div> Cognitive Flexibility, Executive Function, Inhibitory Control, Physical Activity, Sedentary Behavior, University Students 0 0 http://aassjournal.com/browse.php?a_code=A-11-2584-1&slc_lang=en&sid=1 Keerati Intawachirarat keerati.sai@gmail.com 100319475328460017726 0009-0002-7635-7826 Yes Department of Health Promotion, Faculty of Physical Therapy, Srinakharinwirot University, Nakhon Nayok, Thailand Wongsapat Kaewkamnerdpongse oomsin110647@gmail.com 100319475328460017727 0009-0009-2321-1699 No Department of Computer Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Aungkana Boonsem aungkana.boo@kmutt.ac.th 100319475328460017728 100319475328460017728 No School of Liberal Arts, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand Sujittra Srisung sujittras@g.swu.ac.th 100319475328460017729 100319475328460017729 No Department of Chemistry, Faculty of Science, Srinakharinwirot University, Nakhon Nayok, Thailand