Kuznetsov A. Physiological mechanisms of accommodation of organism of 10-16-year-old boys to regular cyclic loads

The thesis is dedicated to the study of physiological mechanisms of accommodation of 10-16-year-old boys to regular cyclic loads. It is shown, that in the process of regular exercising the children of the given age display an increased conductivity of heart and activation of restorative processes in it, enhancement of parasympathetic influence of vegetative nervous system on peripheral part of circulation, reduction of the degree of functional strain of regulatory mechanisms, transition to more efficient eukinetic type of heart activity regulation and more efficient capacitive type of circulation, and an increase in general oxygen blood capacity. It is the complex of the given physiological mechanisms that ensures the increase of general adaptive resources of the growing organism. It should be noted, that no vital changes in integral characteristics of circulation and external breathing, which could be accounted for regular muscular work, have been detected. The output of our research makes it possibleto state, that regular physical loads result in evident changes in age-specific dynamics of functional state and adaptive resources of cardiovascular system of the boys aged from 10 to 16.