In theoretical part of book presented taking about influence of physical activity on the cardiovascular system, frequency of heart-throbs (ЧСС) at peace and at physical activity, and also about factors influencing on ЧСС. Regulator mechanisms allowing to provide adaptation of organism to the changing operating conditions, and processes of the power providing of organism, are described at implementation of muscular activity. To the trainers, sportsmen, and also to the persons, engaging in a health physical culture, and to the patients, including cardiologic profile, using the monitors of frequency of heart-throbs for watching activity of organism at physical activity, enabled choice of loading zones the increase of functional possibilities of organism.To practical part of book the examples of the use are driven monitors for registration of ЧСС, realizations of analysis and estimation of the obtained data by the different categories of users. Possibilities of the use of the obtained data are shown at planning of size of training and curative physical activities, during realization of dynamic supervisions, for comparison and estimation of the obtained data. It is shown that application of monitors of ЧСС at implementation of physical activities allows to do training process or course of curative physical education watched, measured out and safe, that on the whole considerably promotes their efficiency.