Comparative electromyographic analysis of skeletal muscle activity in mas-wrestlers during double- and triple-support pull at start of match

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Dr.Hab., Professor A.E. Bolotin1
Dr. Med., Professor K.-J. Van Zwieten2
Dr. Med., Professor S.A. Varzin3
PhD V.N. Loginov4
Dr.Sc.Psych., Professor A.A. Bobrishchev5
1Peter the Great St. Petersburg Polytechnic University, St. Petersburg
2University of Hasselt, Diepenbeck, Belgium
3Saint Petersburg State University, Saint Petersburg
4Churapcha State Institute of Physical Education and Sports, Churapcha, Yakutia
5Saint-Petersburg University of State Fire Service of Emercom of Russia, Saint Petersburg

Objective of the study was to conduct a comparative electromyographic analysis of the skeletal muscle activity in mas-wrestlers performing a double- and triple-support pull to determine the main muscle groups involved in the work when performing the pull at the start of a match.
Methods and structure of the study. The electromyographic analysis of the skeletal muscle activity in the mas-wrestlers was carried out using the hardware and software diagnostic system. The leads and biopotentials of the skeletal muscles were recorded according to a common method using the Musclelab hardware and software complex developed by Ergotest Technology.
Results and conclusions. Double- and triple-support pulls are the main mas-wrestling techniques. They involve a significant number of muscle groups, which has the greatest impact on the sports achievements in mas-wrestling. The technique of execution of the horizontal pull (both double- and triple-support) determines which body parts will be exposed to the main load.
When performing the triple-support pull at the start of the match, it was found that the trapezius muscle was the "leading" one. The broadest muscle of the back and lumbar extensor muscles showed less electrical activity. The core muscles were the first to contract and were involved in the work the longest.
During the double-support pull, the radial flexor muscle of wrist was found to have the highest electrical activity of all tested upper arm, forearm, thigh, and shin muscles. In this case, the radial flexor muscle of the wrist was the "leading" muscle. The electrical activity of the triceps muscle of arm and biceps muscle of thigh was slightly lower but significantly higher than that of other muscles.
The findings showed that the electromyographic pattern of tension of the skeletal muscles in the mas-wrestlers when performing the double- and triple-support pulls at the start of the match differed significantly in the time of the initial activation of the muscles (t) and structure of tension of the skeletal muscles.

Keywords: mas-wrestling, athletes, hardware technique, three-and two-support traction, muscle groups.

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