The author highlights a problem of athletes' psychic loads control. According his opinion, the integrative mark of heart rate characterizes a stress level also. It can be considered as a mark of one's adaptation to changing conditions of external environment. The heart rate variability (R-R) is the most important mark of an athlete's functional state. It reflects the continual differences in following one by one cardial cycles. Complex evaluation of psychological and physiological marks of psychic loads, suggested by the author, made it possible to control and to analyze the athlete's functional resources in the conditions of competitive activities.
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