The age variability of body composition in men of yaroslavl region

Data on the component composition of the body are widely used in the study of individual characteristics, assessment of physical development and physical performance, indicate the nutritional status of a person and pathology in the body. Most of the adult population of Russia is overweight and obese, with age the risk of disability increases significantly due to a decrease in skeletal muscle mass. There have been no studies devoted to the issue of the component composition of the body of adult men in the Yaroslavl region. The purpose of the study is to study the age-related dynamics of the body composition of men living in the Yaroslavl region. 2623 men aged 2079 were examined. The sample was divided by decades into 6 age groups. In the surveyed, the body weight and length were measured, followed by the calculation of the body mass index. Characteristics of the body composition were obtained and evaluated using the bioimpedance analyzer ABC-01 «MEDASS». A comparative analysis of the body composition of men of different ages revealed ten-day changes. The optimum of physical working capacity and development in terms of bioimpedancemetry falls on 20-29 years. More than half of the surveyed over 30 years of age were overweight and obese. The greatest role in the increase in body weight from 20 to 49 years was played by fat mass. The increase in the absolute values of active cell mass and skeletal muscle mass occurred up to 39 years and amounted to 6,1% and 2,5%, respectively, and their relative values showed a negative trend. Body weight changed statistically significantly up to 49 years, increasing by 13,7%, after 59 years there was a statistically significant decrease in body weight by 10,5%. In men older than 50 years, a decrease in all elements of lean mass was noted, which indicated a decrease in physical performance and a deterioration in health. The age characteristics identified in the work can serve as a basis for the development of regional medical and social programs aimed at improving health, preventing diseases, improving the quality of life of the population and increasing its duration.