Introduction. In modern sports, a high level of physical performance of the athlete is due to the functional properties and condition of all body systems. Of particular importance is the assessment of the functional state of the central nervous system. At the same time, the potential risk of injuries increases with each passing year, so one of the main tasks of sports physicians, psychologists, physiologists, especially in high-achievement sports, is to reduce injuries in sports. The aim of the study was to compare the state of psychophysiological functions of highly qualified athletes who specialize in sports with varying degrees of extremeness (snowboarding, downhill skiing, cross-country skiing). Material and methods. To determine the state of psychophysiological functions of athletes used diagnostic complex "Diagnostics-1" (MV Makarenko, VS Lyzogub). The group of respondents included qualified athletes engaged in skiing, characterized by the predominance of dynamic speed and a high probability of injury. These sports make special demands primarily on the central nervous system of athletes. In accordance with the purpose of the work, we studied the latent periods of simple visual-motor reaction, simple and complex reaction of choice, the efficiency of sensorimotor activity and the dynamics of nervous processes in the feedback mode, the accuracy of the reaction to a moving object and the ratio of reactions of advance and delay, dynamic muscular endurance of the right and left hands (according to the tapping test), as well as the basic properties of the nervous system namely the functional mobility of nervous processes and the strength of nervous processes. Results. Athletes with a higher degree of extreme sports and risk of injury (snowboarders and skiers) showed a higher psychophysiological status in terms of strength of nervous processes and indicators of reaction to a moving object, a higher level of dynamic muscular endurance in terms of tapping test. Conclusions. The identified differences in the state of psychophysiological functions in athletes with varying degrees of extreme sports activities and the level of risk of injury can have prognostic value and be used to optimize sports improvement in these sports.
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