FEATURES OF METABOLIC PROCESSES OCCURRING IN THE BODY DURING INTENSE MUSCLE ACTIVITY

Abstract

The article examines the influence of maximum and submaximal physical activity on the course of metabolic transformations used in the process of sports. It was found that, depending on the intensity and duration of physical activity, it is more expedient to use the criteria of intensity, volume and efficiency to assess the level of oxygen demand in energy processes and the amount of metabolites formed. The results showed that the maximum accumulation of lactic acid in the blood during exercise characterizes the amount of total oxygen debt and anaerobic energy sources. However, it changes little with physical activity of moderate intensity. This becomes more noticeable as the duration and intensity of work increases.