The goal of this clinical trial is to know about the combined effects of calisthenics and plyometric exercises on reducing risk of MSK injuries among school-going children. The main questions it aims to answer are: 1. Will combined exercises (calisthenics+ plyometrics) have a better effect on reducing risk of MSK injuries among school-going children? 2. How do these exercise interventions impact functional movements, and musculoskeletal pain improvements in children Researchers will compare a calisthenics exercise group, a plyometric exercise group, and a combined group (Calisthenics+ Plyometric) to see if there are differences in reducing risk of MSK injuries outcomes. Participants will: * Be male school-going children aged 8-12 years. * Be randomly assigned to one of three groups: calisthenics, plyometric, or combined * Complete baseline assessments of MSK (Functional Movement Screening and pain). * Participate in their assigned exercise program 3 times per week for 8 weeks * Complete follow-up assessments of MSK (Functional Movement Screening and pain) at 4 weeks and 8 weeks. * Perform tests for functional movement screening and MSK assessment.