PARTICIPATION OF THE ANTIOXIDANT SYSTEM IN THE PROCESS OF ADAPTATION OF THE BODY OF ATHLETES DURING INTENSE MUSCLE ACTIVITY

Abstract

Introduction. One of the types of biochemical reserves of the human body is the antioxidant system, which reverses the destructive effect of free radicals and keeps the level of lipid peroxidation (LPO) within physiologically safe limits. The article presents the results of determination of the antioxidant properties of the blood of wrestlers and boxers at rest and after physical activity for 10 minutes of recovery, after 1 hour and in the morning of the next day. The activation of LPO under the influence of physical activity is one of the manifestations of the general adaptation syndrome - stress, and the quantification of its parameters is important for the timely use of antistress agents and measures. The purpose of the study: to study the informative indicators of the antioxidant system of the blood of athletes of different specializations at rest and after the influence of physical activity. Materials and methods. The study involved 21 high-class athletes (men and women) aged 19-30 years. The content of TBA-active products was determined in the capillary blood of athletes by the colorimetric method of reaction with thiobarbituric acid. The peroxide resistance of erythrocytes was studied using a photometer LP-400, "Dr. Lange" (Germany), using ready – made reagent kits. Statistical processing of the data was performed using standard computer programs. Results. After control-training loads lasting about 1.5 hours in representatives of Greco-Roman wrestling and boxing, the content of TBA-active products and erythrocyte peroxidation increased significantly relative to the resting state at the 10th minute of recovery, after an hour and in the morning of the next day. The increase in the content of TBA-active products and erythrocyte hemolysis under the influence of physical activity indicates excessive activation of the process of free radical generation and increased LPO due to insufficient antioxidant protection. Conclusions. Summarizing the analysis and interpretation of the results of the study presented in this paper, as well as the results of previous studies, we can consider the fact of activation of LPO in tissues that function intensively during intense muscle activity and the important role of the body's AO system in ensuring high physical performance to be convincingly proven. The specificity of the functioning of individual mechanisms in various sports is an objective basis for the choice of means and methods of their correction, which provides a protective effect against the negative effects of increased free radical reactions and thereby increases the body's resistance to free radicals, stimulates the efficiency of muscle activity and accelerates the recovery process.