Abstract
Exercise training may increase production of free radicals and reactive oxygen species in different ways. The training type and intensity may influence free radicals production, which leads to differences in oxidative stress status between athletes, but the results of the previous studies are incosistent. The aim of our study was to estimate oxidative stress status in elite athletes engaged in different sport disciplines. The study included 39 male highly skilled professional competitors with international experience (2 Olympic players): 12 wrestlers, 14 soccer players and 13 basketball players in whom we determined the levels of advanced oxidation protein products (AOPP) and malondialdehyde (MDA), as markers of oxidative stress and the total antioxidative capacity (ImAnOX) using commercially available assay kits. The mean AOPP concentration was not significantly different between soccer players, wrestler and basketball players (60.0 ± 23.0 vs. 68.5 ± 30.8 and 80.72 ± 29.1 μmol/L respectively). Mean ImAnOX concentration was not different between soccer players (344.8 ± 35.6 μmol/L), wrestlers (342.5 ± 36.2 μmol/L) and basketball players (347.95 ± 31.3 μmol/L). Mean MDA concentration was significantly higher in basketball players (1912.1 ± 667.7 ng/mL) compared to soccer players (1060.1 ± 391.0 ng/mL, p=0.003). In spite of this fact, oxidative stress markers levels were increased compared to referral values provided by the manufacturer. Type of sports (soccer, wrestler or basketball) have no impact on the levels of oxidative stress markers. Elite sports engagement is a potent stimulus of oxidative stress that leads to the large recruitment of antioxidative defense. Oxidative stress status monitoring followed by appropriate use of antioxidants is recommended as a part of training regime.
Highlights
The cells in our body continuously produce free radicals and reactive oxygen species (ROS) as part of metabolic processes
Elite sports engagement is a potent stimulus of oxidative stress that leads to the large recruitment of antioxidative defense
There was no significant differences in advanced oxidation protein products (AOPP), ImAnOx and MDA concentration in male athlete players with or without supplement (Table ) and in male elite athletes without supplement in different sport disciplines (Table )
Summary
The cells in our body continuously produce free radicals and reactive oxygen species (ROS) as part of metabolic processes. Injurious effects of free radicals are induced by necessity to establish electronic stability and they react with stable molecule, taking its electron and creating new free radical. That way this molecules becomes unstable and further interferes with other. Oxidative stress occurs as a result of ROS activity and reduced protective mechanisms that lead to impairements in cells and tissues functions. It causes secondary damage through late cell death and inflammation [ ].
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