The strongest stimulus, which results a mismatch of functions and movements, is the progressing exhaustion. The exhaustion in the training and competitive activity is considered as the consequence of a decrease of the functional capabilities. The purpose of the current research was the study of the characteristics of movements influencing the reliability of sports technique in conditions of an exhaustion. The pedagogical supervision and experiments with the use of tools methods and means of the registration of the quantitative characteristics of motor actions were used in the research. The results of the stabilographic analysis of exercises - static and dynamic balance - have allowed to reveal the features of changes in the amplitude and the frequency of fluctuations of the general centre of a body weight under the influence of the exhaustion. The changes of the biomechanical structure of the technique with the increase of the degree of the exhaustion are found out. There are an infringement of the function of the dynamic balance and the increased quantity of technical mistakes in exercises.
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