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Effects of a school-based physical activity program on retinal microcirculation and cognitive function in adolescents
Sebastian Ludyga1, Sabrina Köchli1, Uwe Pühse1
1University of Basel, Department of Sport, Exercise and Health, Switzerland.
Daily exercise in adolescents widens retinal arteries and improves inhibitory control. This combined aerobic and coordinative physical activity enhances both cardiovascular and cognitive health.
Area of Science:
- Exercise physiology
- Neuroscience
- Ophthalmology
Background:
- Adolescent health is influenced by physical activity and cognitive function.
- Retinal microcirculation reflects systemic vascular health.
- Cognitive performance, particularly inhibitory control, is crucial for academic and life success.
Purpose of the Study:
- To examine the impact of combined aerobic and coordinative exercise on adolescent retinal microcirculation.
- To assess the association between changes in retinal microvasculature and cognitive performance.
- To determine if daily exercise during school break-time benefits cardiovascular and cognitive health.
Main Methods:
- Cluster-randomized trial with 36 adolescents over 8 weeks.
- Exercise group (EX) performed 20-min daily aerobic and coordinative exercise.
- Control group (CON) engaged in social interactions; retinal vessel analysis and Stroop task were used.
Main Results:
- The exercise group showed significantly wider central retinal arteriolar diameters (CRAE) compared to the control group.
- No significant difference in central retinal venular diameters (CRVE) was observed.
- Adolescents in the exercise group exhibited improved inhibitory control, indicated by reduced reaction time on the Stroop task.
Conclusions:
- Structured daily exercise programs can lead to beneficial changes in retinal arteriolar function.
- Improvements in retinal arteriolar diameter are positively correlated with enhanced inhibitory control.
- Daily exercise during school break-time is recommended for promoting adolescent cardiovascular and cognitive health.
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