INFLUENCE OF ERGOSPIROMETRIC LOAD OF INCREASING POWER TO MUSCLE FAILURE ON POSTURAL STABILITY OF ATHLETES OF VARIOUS SPECIALIZATIONS

The purpose of the research is to study the effect of ergospirometric load of increasing power to muscle failure on the postural stability of athletes of various specializations.Methods and organization of the research. 67 male people were studied, who are highly qualified athletes from category I to master of sports of the Russian Federation. The study of postural stability was carried out using a computer stability analyzer «Stabilan-01-2» by analyzing the fluctuations of the center of pressure, the stability of the vertical body position was assessed in the Romberg test. After the Romberg test, subjects performed an ergospirometry test to failure on a treadmill.

Research results and discussion. Stabilographic indicators of postural stability before ergospirometric load in athletes of various specializations had their own characteristics. Representatives of artistic gymnastics had the lowest rate of oscillation of the center of pressure in the stabilographic test with eyes open, which was expressed in a significantly higher integral indicator of “quality of balance function” and minimal values of average linear speed and ellipse area compared to athletes of other specializations. With visual deprivation, the rate of oscillation of the center of pressure increased in all athletes. Under the influence of ergospirometric load in the test with open and closed eyes, all subjects experienced an increase in the majority of stabilographic indicators (p<0,05-0,01). At the same time, the degree of increase in VAS, SELLS and decrease in the integral indicator «quality of balance function» in the test with eyes closed after physical activity in representatives of martial arts and volleyball was greater (p<0,05-0,01) than in athletes of other sports.

Conclusion. Representatives of artistic gymnastics, basketball, and bandy had more effective regulatory mechanisms of body balance and previously developed various compensatory postural strategies that are launched to counteract and limit the violation of postural control after general or local muscle fatigue.

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