Age characteristics of the component composition of the body at schoolchildren

The article presents the results of a bio-impedance study of students in secondary schools of different age groups. Component analysis of body composition was carried out using the analyzer ABC-01 "Medass" according to the standard scheme. The analysis of the results showed that the optimal values of the parameters correlating with physical fitness and physical development were recorded in children 6-7 years old. Low values of the phase angle were recorded in 40.0% of children 12-13 years old. High values of the body mass index, the proportion of fat mass, which is an indicator of true obesity, were detected with approximately equal frequency in children 12-13 years old and 15-17 years old (32.5-45.0%, p> 0.05). A decrease in general hydration was most often recorded in primary school students (39.3%), and excess in primary school students (48.6%). Deviations of body composition from age trends can serve as criteria for classifying children and adolescents as a risk group for health in order to develop collective prevention and rehabilitation programs.