Influence of fitness activities on muscle and fat composition of the body of women 30-35 years old

Relevance. The consequences of a lack of physical activity in mature women, which causes the risk of various diseases from the cardiovascular, respiratory, endocrine systems, and musculoskeletal system, is a social problem that requires a special approach from specialists in physical education and sports. The results of most studies have proven the effectiveness of the corrective focus of individual fitness programs on the component composition of the female body, but today the problem of dosing physical activity remains unsolved, which has a significant effect on reducing the proportion of fat and increasing muscle mass in women 30-35 years old. Purpose of the study. To identify the effectiveness of the influence of fitness classes on the muscle-fat composition of the body of women 30-35 years old. Research methods: analysis of scientific literature, standard anthropometric measurements of length, body weight, skin folds, body mass index (BMI), pedagogical experiment, mathematical statistics. Results. Fitness classes carried out over six months, combining predominantly aerobic and strength exercise, lead to a significant decrease in the indicators of the following components in relation to the previous month: fat in body weight – in January (p<0.05) and February (p<0.001); excess fat in body weight – November (p<0.05), December, January (p<0.01) and February (p<0.001); excess subcutaneous fat in body weight – November (p<0.05), December, January (p<0.01) and February (p<0.001); body mass index – November, December and January (p<0.05), February (p<0.001) and an increase in the content of muscle tissue in body weight – in December (p<0.01), January (p<0.05) and February (p<0.001) in women 30-35 years old. Conclusion. The results obtained indicate a more favorable effect of predominantly aerobic (55%) combined with strength (45%) loads on the muscle-fat composition of the body of women 30-35 years old.