Authors
- Lanskaya Elena Vladimirovna
- Andriуanova Ekaterina Yurievna Doctor of Biological Sciences, Professor
- Gorodnichev Ruslan Mikhailovich Doctor of Biological Sciences, Professor
Annotation
The article presents the results of a study of the electrophysiological cha racteristics of the neuromuscular apparatus of athletes of different specializations. The study involved 20 athletes specializing in basketball and powerlifting. In athletes
with shoulder and forearm muscles, evoked potentials were recorded during percutaneous electrical sti mulation of the cervical thickening of the spinal cord at the level of C6 – C7 vertebrae in a state of relative muscle rest. Further, using the method of surface electromyography, the electrical muscle potentials were recorded in basketball players during long-range throws into the basket, and in powerlifters during bench presses lying on a horizontal bench. Statistical analysis was performed using parametric (t-test for independent variables) and nonparametric (Mann-Whitney test) methods. The analysis of the distribution of signs for normality was carried out using the Shapiro-Wilk’s W test criteria. It was found that during percutaneous electrical stimulation of the cervical thickening of the spinal cord in basketball players, the thresholds of evoked muscle responses were significantly lower and their amplitude was higher than in powerlifters. As a result
of the electromy ographic study, the “leading” muscles were identified, which demonstrated the greatest electrical activity during voluntary motor actions. At the same time, higher parameters of electromyograms of muscles, especially the “leading” ones, were recorded in powerlifters compared with basketball players. As a result of electrophysiological examination of athletes with voluntary motor actions and electrically induced muscle contrac tion, distinctive features of the functioning of the neuromuscular apparatus in different conditions of its activity were revealed. Ana lysis of the parameters of muscle responses caused by percutaneous electrical stimulation of the spinal cord allowed us
to establish a higher excitability of spinal motor neurons of the tested muscles in basketball players compared with powerlifters. However, during voluntary motor actions, the electrical activity of the muscles, especially the “leading” ones, in powerlifters significantly exceeded that of basketball players.
How to link insert
Lanskaya, E. V., Andriуanova, E. Y. & Gorodnichev, R. M. (2025). ELECTROPHYSIOLOGICAL CHARACTERISTICS OF THE NEUROMUSCULAR APPARATUS OF ATHLETES OF DIFFERENT SPECIALIZATIONS Bulletin of the Moscow City Pedagogical University. Series "Pedagogy and Psychology", № 2 (58), 41. https://doi.org/10.24412/2076-9091-2025-258-41-53
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