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In the pre-competition period of training at the stage of higher sportsmanship, research studies were carried out concerning the bioelectric activity of back muscles of a maswrestler in the process of performing special exercises and in control competitive fights. The analysis of the interferential myogram of muscle activity allowed to distinguish special exercises by value of bioelectric activity. Mostly involved muscles and their group, which also have the greatest engagement in competitive motor action, were observed. One of the criteria on the basis of which the comparison was made was the parameter of the myogram the total bioelectric muscle activity. For the analysis of the athlete’s motor actions, were used the exercises of general physical orientation (deadlift with a dynamometer, squat with a weight, half-squat with a weight), the exercises of special physical orientation (weight lift of 100 kg; weight lift of 100 kg, the neck of which is located at the floor level; block lift at maximum effort) and competitive motor actions (tripleand double-support lift, lift in defense, the Ushnitskiy move and defense-hold). The homogeneity of two independent samples of the average total bioelectric activity results of mostly involved muscles was checked when performing eleven exercises of general and special physical orientation and competitive action. The results of the study revealed that among all exercises, the maximum indicators of the total bioelectric activity of the upper trapezius muscle (Upper Trapezius) are shown only in the exercises “squat with a weight” (1503,2±83,6 mV*sec) and “halfsquat with a weight” (1345,3±56,9 mV *sec). Keywords—mas-wrestling; electromyography; total average bioelectric muscle activity; special exercises; competitive movement

Analysis of Bioelectrical Activity of the Athlete’s Back Muscles During Special Exercises and Competition Actions in Such Power Sport as Mas-Wrestling