ACTIVATION OF FREE RADICAL OXIDATION OF ERYTHROCYTES AND THYROID HORMONES LEVEL IN RATS WITH PHYSICAL FATIGUE
The aim of the study is to analyze changes in hormonal state and free radical oxidation in cases of physical fatigue in white male rats during the experiment. Materials and methods. White male rats (55) with body mass about 220-260 g are investigated. Physical fatigue is modeled with forced swimming. The contents of malondialdehyde, glutathione, glutathione reductase, glutathione peroxidase in erythrocytes are investigated and the contents of cortisol, thyroxine, and triiodothyronine in the blood plasma are studied. Results. It has been established that strenuous exercises are accompanied by a power reduction of the antioxidant system, a level increase of cortisol and a decrease in the concentration of thyroxin and triiodothyronine.