Influence of the development trajectory of interpersonal security on physical activities in school among early adolescents: the mediating effect of control beliefs

Objective: We explored the development trajectories of interpersonal security among early adolescents and their impact on physical activities in school and examined the mediating effect of control beliefs. Methods: A whole-year, three-stage follow-up investigation of 2,180 junior high school students (45.32% boys; age, 11.88 ± 1.11 years) from a single province in China was conducted. Results: < 0.01). Conclusion: The better the development trajectory of interpersonal security, the easier it is to enhance early adolescents' control beliefs and their engagement with physical activities in school. Educators and parents should pay more attention to the cultivation of early adolescents' social adaptability and interpersonal communication skills.