Design and Validation of a Personalized Preventive System for Adolescents Based on Biological Maturity, Body Composition, and Musculoskeletal Function.

This study aims to evaluate the effectiveness of a personalized preventive physiotherapy and exercise program based on biological maturation status in adolescents aged 14 to 15 years. During adolescence, rapid growth and differences in biological maturation can increase the risk of musculoskeletal imbalances, pain, and injuries, especially in physically active youth. However, most preventive programs are designed according to chronological age rather than biological development. Participants will be assessed using non-invasive methods to determine biological maturation, body composition, and musculoskeletal function, including strength, balance, mobility, and postural control. Based on these assessments, participants in the intervention group will receive a 12-week individualized preventive physiotherapy program adapted to their maturation stage, while the control group will continue with their usual school or sports activities without structured intervention. The study will compare changes in musculoskeletal function, body composition, pain perception, and lifestyle-related variables between baseline and post-intervention assessments. The results are expected to provide evidence for a maturation-based preventive approach that can be applied in clinical, school, and sports settings to reduce injury risk and improve musculoskeletal health in adolescents.