[Effect of physical training with reference to anaerobic threshold on the indicators of exercise tolerance and restoration of work capacity in patients after myocardial infarction].

In patients who had sustained myocardial infarction including that of complicated history, the anaerobic threshold was defined to choose the optimum intensity of physical training. The latter were also examined for effects on exercise tolerance. It was ascertained that measuring physical exercise by heart rate at the level of the anaerobic threshold made it possible to choose the optimal conditions for the aerobic supply of metabolic demands during physical training. Applying physical training under aerobic conditions greatly increases exercise tolerance, prevents recurrent myocardial infarctions and plays an important role in the secondary prevention of coronary heart disease.