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Int J Sports Med. 2009 Dec;30(12):851-6. doi: 10.1055/s-0029-1238289.

Long-term effects of oxidative stress in volleyball players.

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Faculty of Pharmacy, University of Belgrade, Institute of Medical Biochemistry, Belgrade, Serbia.


The aim of this study was to determine the impact of long-term training on elite female volleyball players and to determine parameters that could discriminate them according to the level of oxidative stress-associated adaptation. Fifty-four elite female volleyball players were divided into 3 groups (1: below-average training experience <8.0 years, 2: average training experience between 8.0 and 10.5 years and 3: above-average training experience >10.5 years). The measured parameters were reactive oxygen metabolites, biological anti-oxidative potential, superoxide anion, malondialdehyde, advanced oxidation protein products, lipid hydroperoxides, paraoxonase activity, superoxide-dismutase activity and sulphydryl groups. Multiple discriminant analysis of the oxidative stress status parameters between the three groups of athletes indicated a statistically significant difference (Wilks' lambda=0.458, X(2)=35.898, p=0.031). The most important discriminant variables, superoxide-dismutase and superoxide anion, were the best indicators of differences between groups with different training experience. The significantly higher values were found in Group 3 compared with Group 1 in superoxide-dismutase activity (141+/-32 vs. 86+/-46; p=0.002), sulphydryl groups (p=0.031), and reactive oxygen metabolites (p=0.042). The significantly lower superoxide anion was found between Group 3 and Group 1 (377+/-187 vs. 1183+/-905; p=0.001). Oxidative stress status parameters adequately discriminated 68.5% of athletes with different training experience.

[Indexed for MEDLINE]

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