PHYSIOLOGICAL BASIS OF MUSCULOSKELETAL SYSTEM DEVELOPMENT IN 12–13-YEAR-OLD GIRLS

This article scientifically and practically analyzes the physiological development features of the musculoskeletal system in adolescent girls. The study focuses on identifying patterns related to morphofunctional changes in the skeleton, muscles, joints, and ligaments of 12–13-year-old girls. Based on scientific literature, normative legal documents, and empirical observations, it was found that during adolescence, bones grow rapidly in length, muscle strength develops relatively slowly, and joint mobility remains high. The results indicate that the degree of biological maturation and the methodically correct organization of physical education classes are important factors in the development of the musculoskeletal system. The article’s conclusions have scientific and practical significance for organizing physical education activities for adolescent girls, taking age and gender characteristics into account, and for enhancing preventive and health-promoting approaches.