Impact of mobile tracking applications on adolescents' physical fitness and motivational outcomes in Physical Education

Introduction: Contemporary physical education faces unprecedented challenges in maintaining adolescent engagement amid technological disruption and declining fitness levels worldwide. Objective: To evaluate the immediate effects of mobile tracking applications on motivation and physical performance in adolescent physical education within North African educational contexts. Methodology: A cluster-randomized controlled trial was conducted with 397 high school students (49.4% male; M age = 17.51 years) from six public schools in Casablanca, Morocco. Classes were randomly allocated to experimental (n=243) or control (n=154) groups. The experimental intervention incorporated multi-platform fitness tracking within a structured 6-week endurance training program. Results: The experimental group demonstrated substantial improvements across all outcomes. Intrinsic motivation increased by 28.1% versus 6.1% in controls, with large effect sizes (η² = 0.51 vs 0.06). Physical performance showed parallel gains: abdominal endurance improved by 41.4% versus 7.9%, cardiovascular fitness by 40.3% versus 15.2%. Discussion: The magnitude of improvements exceeds those typically reported in technology-enhanced interventions, suggesting synergistic benefits from the multi-platform approach. Moderation analyses revealed greater benefits among female students and lower socioeconomic backgrounds. Conclusions: Mobile tracking applications significantly enhance both motivational and physical outcomes in adolescent physical education when systematically integrated with evidence-based pedagogical frameworks.