Starting double- and triple-support pulls in mas-wrestling: skeletal muscle electrical activity rating EMG tests and analysis

Background. Success in the modern mas-wrestling sport competitions depends on the specific technical and tactical skills, with the starting pulls generally classified into the triple- and double-support ones – that mean the preferred starting positions. The individual starting preferences are believed to be dictated by the fine biomechanics, muscle group power and fitness and specific priority goals of every bout. It is not unusual that an individual standard starting posture heavily contributes to the competitive success [1, 3, 6, 7]. The starting pull and potential immediate advantage it generates is secured by the lead muscle groups of the upper and lower limbs and trunk – conditional on the perfect harmony and coordination of skeletal muscle efforts for the highest efficiency of the muscle contraction process [2, 3, 8]. It should be emphasized, however, that the sport is still in need of the key muscle group performance rating studies and analysis, with a special priority to the starting triple- and double-support pull versions applied in mas-wrestling bouts. Objective of the study was to run electromyographic (EMG) tests of the key muscle group electrical activity in the starting triple- and doublesupport pull versions with a comparative analysis. Methods and structure of the study. We made, for the purposes of the study, EMG tests of the key muscle groups mobilized in the starting triple- and double-support pull versions in the mas-wrestling bouts using a computerized EMG test system [4, 6, 5]. The muscle group electrical activity was tested using a standard Muscle Lab system made by Ergotest Technology Co. The computerized test system of a modular telemetric design may be configured and customized for specific research goals. The MuscleLab test system includes a 8-channel electromyograph; a 1D/ 2D/ 3D goniometer module; dynamometric 2-channel module rated for 100kg, 300kg and 500kg maximums; a connector port for the power platform; chronometric module with up to 8 optic couples; a contact mat for IR tests; biaxial accelerometer; and a linear movement sensor with an inertial coil to fix positions and linear movement speeds. In practical EMG tests, we used disposable surface electrodes fixed on skin 2cm afar. We tested the trunk/ lower limb muscle group electrical activity in the starting triple- and double-support pull versions of the mas-wrestling bouts. More specifically, we tested the electrical activity of the trunk trapezius muscle, latissimus dorsi, and lumbar extensor muscles; and the lower limb quadriceps, biceps and gastrocnemius. Results and discussion. Given on Figure 1 hereunder are the starting triple- and double-support pull test data that made it possible to detect the lead muscles in the movement sequence.

Jaar van publicatie:2020

Trefwoorden:mas-wrestling, athletes, triple /double-support pull, electromyographic test system, muscle group

BOF-keylabel:ja

Toegankelijkheid:Closed