Alteration in biomarkers of oxidative stress in judokas with different age

Abstract

Increased intensity of physical activity is accompanied by increased consumption of oxygen throughout the body, especially by skeletal muscle. Part of this oxygen, is transform into mitochondria in H2O, while a smaller part (2-5%) makes a reactive oxygen species, toxic forms of oxygen. The aim of this study was to determine eventual differences in oxidative stress parameters, in judokas different age, after applied training. The sample of this research includes 24 elite judokas, different age, divided into three groups according to age categories. Monitoring the changes in oxidative stress biomarkers was determined by activity of superoxide dismutase (SOD), glutathione reductase (GSH-R), glutathione peroxidase (GSH-Px), catalase (CAT), and total antioxidant capacity (TAS). After applied training SOD, CAT and GSH-Px activity in judokas senior age, increased statistical significantly, in compared with judokas of younger senior age. Also, statistically significance increased was noted in SOD activity in senior age judokas, in relation to junior age judokas. Obtained data of this research has shown that training program and maximal load during training, which require modern judo, cause alteration in some biomarkers of oxidative stress. These changes are expressed in higher level in judokas senior age, which can cause oxidative stress.