It is known that fast fibers occupy the bulk of the muscular system of highly qualified power athletes. This allows them to achieve high results, especially in speed-strength sports. This is also indicated by physiological studies of individual muscle fibers of representatives of strength sports athletes, who have shown a higher level of contractility and power of work for several years in relation to untrained persons of the same age. The purpose of the study was to substantiate the efficiency of the transfer of the weight-lifting training method in stimulating an increase in the level of strength preparedness of wrestlers based on the study of the bioelectric activity of muscles. The pedagogical experiment lasted three months and was carried out at the Children's Sport School "Victoria" of the city of Tarko-Sale in the Yamalo-Nenets Autonomous District. The experiment involved two groups of wrestlers: experimental group (12 people) and control group (12 people). The experimental group used the model motor action (MMA) in its strength training, which consisted in the fact that the traditional for the heavy weightlifters technique for performing the bar from the platform was modified to take into account the elements of the motor action of the wrestler in the parterre position and in the standing throw over the chest, namely: during the first second the bar was lifted to the knees, for 2-6 seconds the athlete held the weight of the bar in a static position, at the level of the knees, and then, at the 7th second, the bar was lifted until the legs and torso were fully straightened. The wrestlers of the control group trained in the preparatory period according to the traditional strength training program, namely, without the use of barbell traction with intensive loads. Control testing was carried out three months later and only in the barbell pull from the platform. While performing MMA with the help of a myomonitor, the bioelectrical activity of the direct bundle of the quadriceps muscle of the left and right legs, the right and left side of the latissimus muscle of the wrestler's back was carried out continuously. It was found out that the use of intensive power loads (ranging from 60 to 100% of the maximum) when performing bar pull from the platform led after three months to the development of more economical functioning of the neuromuscular system of wrestlers of the experimental group along with a background of significantly higher final results of force testing in comparison with the wrestlers of the control group.
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