INDICATORS OF VEGETATIVE DYSFUNCTION IN ATHLETES WITH SIGNS OF OVERTRAINING

Abstract

The article examines indicators of autonomic dysfunction and features of autonomic regulation of heart rhythm in athletes. The study was conducted on the basis of the sports medicine center of Sumy State University. Two groups of athletes took part in the study. The first group of athletes included those who had signs of a non-functional state and autonomic dysfunction (in the survey according to Wayne, or it was diagnosed with an unsatisfactory ortho/clinostatic reaction) - 27 people. The second group consisted of 40 people without signs of functional overstrain (overtraining). In the course of the study, highly qualified track and field athletes were examined using the method of heart rate variability (HRV), orthostatic and clinostatic tests, and Wayne's questionnaire. The main temporal, spectral and indicators of heart rate variability were studied, and the predominant type of autonomic regulation of heart activity was established. The study of indicators of vegetative regulation of the heart showed a statistical difference between indicators of heart rate variability in athletes. Thus, the study of the features of heart rate variability makes it possible to assess the state of the mechanisms of regulation of physiological functions in the human body, as well as the general activity of regulatory mechanisms, neurohumoral regulation of the heart, the relationship between sympathetic and parasympathetic links of the autonomic nervous system. It is also quite important that the obtained data on the athlete's functional state can be used in the future to evaluate the athlete's training process and ways to optimize it.