Caused potentials of brain of martial artists (by example of sports karate)

Characteristics of the caused potentials of the brain of martial artists (by example of sports karate) depending on sports qualification are studied. The object of the research were 30 men aged 18-23 (the average age was 19.8±2.83); they were divided into two groups. The group of low qualification had 15 athletes training in this specialization for less than a year, not having adult sports categories. The group of high qualification included 15 athletes engaged in chosen specialization for over three years and having sports qualification of the master of sports or candidates for the master of sports. Registration of the visual caused potentials (VCP) and the somatosensory caused potentials (SSCP) was made by means of the device "Neuro-MVP-Micro". It is shown that in the course of sports improvement martial artists have a decrease in the latent period and an increase in VCP. There is also a decrease in the latent periods and amplitudes of SSCP of the brain in the occipital area. These changes are better expressed in the components reflecting early approach of primary cortical activation of the somatosensory zone. The results suggest that in the process of training in combat there are changes in the nervous system, manifested primarily in reducing the latency of SSCP, resulting in activation of the primary somatosensory cortical areas much earlier. According to it highly skilled martial artists show that the speed of the analysis of sensory information is increased. Decrease in the latent period of VCP testifies to faster course of processes of transfer and incentive processing of martial artists. It is possible to assume that thus there is a creation of new temporary connections in the cerebral cortex that leads to improvement of all motive coordination. Another important indicator of development of sports skill in combat sport is reaction time. The time of response to an irritant of athletes decreases with skill growth. Reduction of the latent period of VCP testifies to reduction of the number of synaptic contacts, and increase in amplitude of VCP - to synchronization of work of ensembles of neurons, which leads to activation of cortical processes, and, therefore, to emergence of the new temporary connections, fuller analysis and irritant recognition, increase in speed of response to irritation.

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