Teoriya i praktika fizicheskoy kultury №11 2017, pp.49-50

Dr.Biol., Professor R.R. Khalfina¹
PhD, Associate Professor T.V. Timchenko²
PhD, Associate Professor A.V. Danilov^2
1Ufa Law Institute of the Ministry of Internal Affairs of Russia, Ufa
²M. Akmullah Bashkir State Pedagogical University, Ufa

Objective of the study was to analyse variations in the electro-physiological functionality rates of the athletes’ visual systems in hypoxic conditions. Subject to the study were 16 active athletes of 18-23 years of age free of ophthalmologic pathologies. Bioelectric activities of different visual system components were tested using the common electro-physiological functionality test methods including: electroretinography (ERG) and visual response potential (VRP) test methods. For the oxygen starvation modelling purposes, we applied the maximal voluntary breath-holding test (VBHT). We found that variations in the b-wave amplitude rates and the delayed components of the response potential were indicative of the fast-response protective and compensatory mechanisms being activated as manifested by the inhibition processes in the peripheral and central sections of the visual system analyser.
We believe that the variations in the electro-physiological functionality rates triggered by the transitional hypoxia as found by the study are due to the neuron interactions in the respiratory centre – reticular formation – peripheral and cortical sectors of the visual system.

Keywords: short-term hypoxia, athletes, visual system.

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