The initial stage of physical training of young athletes solves many versatile problems. Among these tasks are: involvement of a large number of children in the kickboxing sports training system, harmonious physical development and improvement of physical fitness, preservation and replenishment of health reserves. The last task increases the relevance of preventive measures in the early stages of training children aged 8-9 in kickboxing. In this regard, the study of the basic functional features of the body of young athletes is undoubtedly relevant. It has been established that at the initial stage of training in kickboxing, children of 8-9 years old, due to the immaturity of individual body systems, have a certain instability of the links of the musculoskeletal system. Positional instability is associated with a violation of the tone of the musculoskeletal apparatus, in particular, its insufficiency in the muscles of the trunk and an increase in the lumbar spine. The asymmetry of the shoulder girdle, a change in the shape of the back and shoulder blades, a functional change in posture and muscle weakness were revealed. These data confirm the disharmony of the development of the muscles of the musculoskeletal system of 8-9-year-old athletes. It should be noted that all changes are unstable. Also, high muscle elasticity, good flexibility of young athletes, normal shape and functionality of the feet were established. This requires a rational construction of the process of physical training of young athletes by selecting sports means that ensure the strengthening of individual links of the musculoskeletal system.
MUSCULOSKELETAL SYSTEM, CORRECT POSTURE, YOUNG ATHLETES, KICKBOXING, MUSCULAR SYSTEM, FLEXIBILITY
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