title: Long-term effects of oxidative stress in volleyball players.
abstract: 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.
authors.affiliation: Faculty of Pharmacy, University of Belgrade, Institute of Medical Biochemistry, Belgrade, Serbia.
authors.forename: J
authors.initials: J
authors.lastname: Martinovic
authors.forename: V
authors.initials: V
authors.lastname: Dopsaj
authors.forename: M J
authors.initials: MJ
authors.lastname: Dopsaj
authors.forename: J
authors.initials: J
authors.lastname: Kotur-Stevuljevic
authors.forename: A
authors.initials: A
authors.lastname: Vujovic
authors.forename: A
authors.initials: A
authors.lastname: Stefanovic
authors.forename: G
authors.initials: G
authors.lastname: Nesic
mesh_terms: D000293:Adolescent; D000328:Adult; D056352:Athletes; D054874:Athletic Performance / Q000502:physiology*; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D018384:Oxidative Stress; D017382:Reactive Oxygen Species / Q000378:metabolism; D013438:Sulfhydryl Compounds / Q000378:metabolism; D013482:Superoxide Dismutase / Q000378:metabolism; D013481:Superoxides / Q000378:metabolism; D013997:Time Factors; D054798:Volleyball / Q000502:physiology*; D055815:Young Adult
chemical_list: D017382:Reactive Oxygen Species; D013438:Sulfhydryl Compounds; D013481:Superoxides; D013482:Superoxide Dismutase