Medical support of fitness is a complex multifactorial problem. One of the factors with regular physical exertion is timely dynamic monitoring medical monitoring, in order to detect early manifestations of pathological conditions in fitness practitioners, as well as the corresponding preventive treatment of these conditions. Another factor in the medical provision of fitness, given the initial manifestations of acute or relapse of chronic diseases among club members, is the immediate correction of pathological conditions during the training process. The use of bioimpedansometry in the rehabilitation of obese patients allows you to correctly build treatment tactics, as well as facilitate dynamic monitoring of the patient for the entire rehabilitation period. In clinical practice, the negative impact of obesity on the occurrence, course and effectiveness of treatment of diseases developing against the background of overweight is often underestimated. Patients with complicated obesity, as a rule, receive medical