FEATURES OF CHANGES IN THE WORK OF THE HEART AND CENTRAL HEMODYNAMICS DURING THE PERIOD OF EARLY RECOVERY AFTER STATO-DYNAMIC PHYSICAL EXERCISE

Abstract

Modern high-achieving sports, as well as recreational motor activities, are characterized by a significant intensification of the duration, intensity and volume of muscle work, which can cause the appearance and development of pre-pathological and pathological changes in the activity of the heart and blood vessels. They, in turn, can become the cause of fatal accidents with suboptimal loads in sports. Regular physical exertion leads to specific adaptive changes in the circulatory system, resulting in changes in the pumping function of the heart and the functioning of blood vessels. The purpose of the study is to study the characteristics of changes in heart function and central hemodynamics in the period of early recovery after stato-dynamic physical exertion. We examined 3 groups of young bodybuilders (group 1), those engaged in fitness (group 2), untrained individuals (group 3). Registration of indicators of cardiovascular activity before and after static-dynamic exercise was carried out using the computerized diagnostic complex “Cardio+” (Ukraine). The bodybuilders examined by us are distinguished by a greater degree of training and adaptation of the cardiovascular system, which is evidenced by the presence of physiological bradycardia, increased stroke volume, volumetric ejection velocity, as well as indexes of the heart’s stroke and minute work. The response of the circulatory system of bodybuilders to a mixed type of exercise resembles that in response to a dynamic load, to which bodybuilders are less adapted than individuals engaged in fitness. In turn, the circulatory system of people engaged in fitness responds to a mixed load mode identically to that of a static load, to which these individuals are less adapted than to dynamic exercises. Also, the representatives of the 2nd group occupy an intermediate position regarding the indicators of the cardiovascular system in the initial state, which indicates that they are more adapted to physical exercises than untrained individuals, but less adapted than bodybuilders.

Keywords

• stato-dynamic load,circulatory system.