Abstract
This study aims to study changes in the body's physiometric indicators of young Yakuts of early and late puberty, living in the Sakha (Yakutia) Republic. 140 young men of Yakut nationality were examined using standardized research methods: dynamometry, spirometry, caliperometry, anthropometry and body composition assessment using bioelectrical impedance analysis with the ABC-01 Medass analyzer. It was found that in Yakut youths between the ages of 14 and 17 there is an increase in skeletal muscle and a decrease in fat mass, indicators of dynamometry, deadlift and lung capacity are increasing. Parallel bioelectrical impedance analysis showed that in young men, between the early and late puberty periods, the levels of fat mass (FM) and an increase in lean (LM), musculoskeletal (MSM) and active cell mass (ACM) decrease. There is growth not only in skeletal muscles and skeleton growth, and the mass of internal organs is also increasing. The data obtained will be used to develop an interval classification of body composition parameters for males of different ages in order to develop standards of physical development specifically for people living in the Sakha (Yakutia) Republic.
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