Abstract
The study was aimed at investigating the influence of sports physical activity on the state of the cardiovascular system in students of cyclic (athletics) and acyclic (judoka) sports. Analysis of heart rhythm has revealed the economization of cardiovascular system functions at rest in the majority of qualified athletes. Heart rhythm control was balanced and regulated by the sympathetic and parasympathetic sections of the autonomic nervous system. Athletes under the influence of cyclic sports physical loads had an increase in the activity of the parasympathetic autonomic nervous system and a moderate level of sympathetic and humoral-metabolic influences on the heart rhythm in comparison with non-athletes. Activation of the autonomic nervous system activity on heart rate in track and field athletes and judokas at rest reflects a significant adaptation of the cardiovascular system to physical activity in athletes. The increase in the activity of the autonomous circuit of heart rhythm regulation in track and field athletes and judoists in resting conditions was an indicator of a significant adaptive potential of the cardiovascular system.
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