Research Article

A Follow-Up Cohort Study on Physical Activity Levels in Turkish Adolescents

Number: 27 December 31, 2025
TR EN

A Follow-Up Cohort Study on Physical Activity Levels in Turkish Adolescents

Abstract

Aim: Regular physical activity (PA) is essential for maintaining health and preventing chronic diseases. However, global evidence shows a consistent decline in PA during adolescence, with Turkish adolescents similarly experiencing increasing levels of inactivity over the last decades. Adolescence represents a critical developmental stage where PA habits are established and influence long-term health outcomes, yet longitudinal evidence from Türkiye remains limited. This study aimed to examine 18-month changes in PA among Turkish adolescents using a prospective cohort design. Method: This study was planned as a prospective cohort study.296 adolescents (grades 5–8, aged 11–13 years) who completed the baseline survey between November – December 2022, a randomly selected subsample of 192 students from one school was followed up in May-June 2024.PA levels were assessed at both time points using anthropometric measures and the validated Turkish version of the Physical Activity Questionnaire for Older Children (PAQ-C). Results: A total of 157 participants (boys, n=74; girls, n=83) completed assessments at both time points. Significant decreases were observed in six of nine PAQ-C items for boys and two of nine items for girls (p < 0.05). School-time PA (items 2–4) showed significant reductions, while spare-time and extracurricular PA (items 1 and 5–9) remained largely unchanged (p > 0.05). Gender differences indicated greater reductions among boys compared with girls. Conclusions: Over an 18-month period, PA levels among Turkish adolescents declined, with reductions most evident in school-time PA and more pronounced among boys. These findings underscore the need for longitudinal monitoring of adolescent PA in Türkiye. There is limited study estimating the follow-up on physical activity in the Turkish adolescent population.

Keywords

Ethical Statement

This study has the necessary approvals from local governments and the ethical approval from Ethics Committee of Marmara University Institute of Health Sciences (No: 38 Date: 21.03.2022). Written informed consent was obtained from the parents.

References

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Details

Primary Language

English

Subjects

Physiotherapy

Journal Section

Research Article

Publication Date

December 31, 2025

Submission Date

August 22, 2025

Acceptance Date

September 1, 2025

Published in Issue

Year 2025 Number: 27

APA
Akkurt, M. F., Durusoy, E., Timurtaş, M., Çolak, B. B., Akkurt, B., & Timurtaş, E. (2025). A Follow-Up Cohort Study on Physical Activity Levels in Turkish Adolescents. Istanbul Gelisim University Journal of Health Sciences, 27, 919-929. https://doi.org/10.38079/igusabder.1770249
AMA
1.Akkurt MF, Durusoy E, Timurtaş M, Çolak BB, Akkurt B, Timurtaş E. A Follow-Up Cohort Study on Physical Activity Levels in Turkish Adolescents. IGUSABDER. 2025;(27):919-929. doi:10.38079/igusabder.1770249
Chicago
Akkurt, Mustafa Ferit, Ebru Durusoy, Meral Timurtaş, Betül Beyza Çolak, Burcu Akkurt, and Eren Timurtaş. 2025. “A Follow-Up Cohort Study on Physical Activity Levels in Turkish Adolescents”. Istanbul Gelisim University Journal of Health Sciences, nos. 27: 919-29. https://doi.org/10.38079/igusabder.1770249.
EndNote
Akkurt MF, Durusoy E, Timurtaş M, Çolak BB, Akkurt B, Timurtaş E (December 1, 2025) A Follow-Up Cohort Study on Physical Activity Levels in Turkish Adolescents. Istanbul Gelisim University Journal of Health Sciences 27 919–929.
IEEE
[1]M. F. Akkurt, E. Durusoy, M. Timurtaş, B. B. Çolak, B. Akkurt, and E. Timurtaş, “A Follow-Up Cohort Study on Physical Activity Levels in Turkish Adolescents”, IGUSABDER, no. 27, pp. 919–929, Dec. 2025, doi: 10.38079/igusabder.1770249.
ISNAD
Akkurt, Mustafa Ferit - Durusoy, Ebru - Timurtaş, Meral - Çolak, Betül Beyza - Akkurt, Burcu - Timurtaş, Eren. “A Follow-Up Cohort Study on Physical Activity Levels in Turkish Adolescents”. Istanbul Gelisim University Journal of Health Sciences. 27 (December 1, 2025): 919-929. https://doi.org/10.38079/igusabder.1770249.
JAMA
1.Akkurt MF, Durusoy E, Timurtaş M, Çolak BB, Akkurt B, Timurtaş E. A Follow-Up Cohort Study on Physical Activity Levels in Turkish Adolescents. IGUSABDER. 2025;:919–929.
MLA
Akkurt, Mustafa Ferit, et al. “A Follow-Up Cohort Study on Physical Activity Levels in Turkish Adolescents”. Istanbul Gelisim University Journal of Health Sciences, no. 27, Dec. 2025, pp. 919-2, doi:10.38079/igusabder.1770249.
Vancouver
1.Mustafa Ferit Akkurt, Ebru Durusoy, Meral Timurtaş, Betül Beyza Çolak, Burcu Akkurt, Eren Timurtaş. A Follow-Up Cohort Study on Physical Activity Levels in Turkish Adolescents. IGUSABDER. 2025 Dec. 1;(27):919-2. doi:10.38079/igusabder.1770249

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