FUNCTIONAL TESTS, AS A CRITERION FOR EVALUATING ADAPTIVE PROCESSES OF THE CIRCULATORY SYSTEM IN ATHLETES OF ACYCLIC SPORTS
The article presents the analysis of long-term studies of acyclic sports athletes, specialization of martial arts: judo, Greco-Roman wrestling, weightlifting, kickboxing and hand-to-hand combat. The analysis of the main hemodynamic parameters at rest and when performing cardiovascular tests was held. Resting level data are regarded as the result of long-term adaptation to the conditions of long-term training in this sport. Obtained in the process of cardiovascular activity are the result of urgent adaptations of the circulatory system to performance specific for these types of sport loads. In the process of long-term adaptation of the circulatory system in athletes of acyclic kind of sports specialized in martial arts was followed: the normal values of heart rate, arterial pressure increase and minute volume of blood circulation. Analysis of the components of the spectral power of the heart rhythm in the conditions of relative rest showed that in the examined athletes was noted the predominance of the very low-frequency component (VLF>LF>HF) in the management of the heart rhythm, which is a sign of fatigue or vegetative dysfunction. The most variable, from the position of urgent adaptation in the studied contingent are the data obtained in the performance of active orthostatic and samples with isometric load, which were accompanied by a significant increase in the proportion of sympathetic effects on heart rate and centralization in management of heart rate. The results of the study formed the basis for the scales of differentiated assessment of the functional state of the circulatory system of the aforecited group of athletes for use in monitoring during the stage control.