Bodyweight workouts in school boost teen fitness

This study tested whether adding calisthenics (bodyweight exercises like push-ups and squats) to gym class helps teens get stronger and feel better about themselves. 100 students aged 13-16 were split into two groups: one did calisthenics for 12 weeks, the other followed standard gym class. Researchers measured strength, body fat, eating habits, and self-esteem before and after the program to see if it works.