Optimizing adolescent health: Investigating physical activity's impact on fitness, working memory, and academic performance

This quasi-experimental study investigates the intricate relationship among adolescents’ physical activity, working memory, and academic performance, recognizing their significance in adolescent development. Employing a quasi-experimental design, 85 13-year-olds from a Taiwanese junior high school were involved. Data scrutiny was facilitated through Analysis of Covariance (ANCOVA), with the mediation effect explored via Smart Partial Least Squares structural equation modeling (Smart PLS-SEM). Findings indicate significant improvements in physical fitness among both aerobic and resistance exercise groups compared to controls. Additionally, both exercise cohorts demonstrated a stronger positive association with verbal working memory scores than the control group. Intriguingly, visuospatial working memory fully mediated the relationship between resistance exercise and science performance. These results highlight the potential advantages of incorporating brief daily exercise sessions to bolster adolescent physical fitness and emphasize the mediating function of working memory in connecting physical activity with academic accomplishment. This study furnishes valuable insights for educators and policymakers striving to enhance adolescent well-being and academic achievement through targeted interventions.