PhD, Associate Professor A.I. Laptev¹
Dr. Biol., Professor R.V. Tambovtseva^1
1Russian State University of Physical Education, Sports, Youth and Tourism (SCOLIPE), Moscow

Objective of the study was to evaluate the effect of single and repeated hypoxic exposure on the anaerobic performance of swimmers and athletes.
Methods and structure of the study. Changes in the parameters of the respiratory system, hemodynamics after exposure to a hypoxic stimulus during work and recovery are assessed using a large number of methods, such as gasometry using the Cortex Metalyser 3B-R2 gas analyzer, ergometry on the Monark 894E bicycle ergometer, pulsometry, determination of lactate in the blood using the Biosen device C-line.
Results and conclusions. The paper shows changes before and after hypoxic exposure, ergometric and physiological parameters of athletes during anaerobic work on a bicycle ergometer (3×90 s), both with single and multiple hypoxic exposure. In both variants of hypoxic exposure, at the stages of recovery after each 90-second work, such indicators as relative and absolute oxygen consumption (VO2rel., VO2absol.), the level of carbon dioxide concentration in the exhaled air (VCO2) decreased. Lung ventilation (VE) and blood lactate concentration (HLa) decreased significantly with repeated hypoxic exposure. It has been recorded that with repeated hypoxia during the recovery period, the rate of decline in all physiological performance indicators is higher, which characterizes the recovery processes.

Keywords: hypoxia, anaerobic performance, hypoxic resistance, highly skilled athletes, swimmers, athletes, anaerobic power, anaerobic capacity.

References

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