changes in athlete’s redox state induced by habitual and unaccustomed exercise

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ID: 252521
2012
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Abstract
The purpose of this study was to assess the influence of sport-specific and nonspecific bouts of exercise on athletes’ redox state. Blood samples were collected from 14 handball players immediately before and after graded exercise test on the cycle ergometer and handball training. Levels of superoxide anion radical (O2-), hydrogen peroxide (H2O2), nitrites (NO2-) as markers of nitric oxide, index of lipid peroxidation (TBARs), glutathione (GSH), superoxide dismutase (SOD), and catalase (CAT) activity were determined. Exercise intensity was assessed by a system for heart rate (HR) monitoring. Average athletes’ HR was not significantly different between protocols, but protocols differed in total time and time and percentage of time that athletes spent in every HR zone. The laboratory exercise test induced a significant increase of H2O2 and TBARs as well as the decrease of the SOD and CAT activity, while after specific handball training, levels of NO2- were increased and SOD activity decreased. It seems that unaccustomed short intensive physical activity may induce oxidative stress in trained athletes, while sport-specific activity of longer duration and proper warm-up period may not. Further research should show whether the change of protocol testing and the implementation of various supplementations and manual methods can affect the redox equilibrium.
Reference Key
djordjevic2012oxidativechanges Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Dusica Z. Djordjevic;Dejan G. Cubrilo;Vladimir S. Puzovic;Milena S. Vuletic;Vladimir I. Zivkovic;Nevena S. Barudzic;Dragan S. Radovanovic;Dragan M. Djuric;Vladimir Lj. Jakovljevic
Journal journal of aoac international
Year 2012
DOI
10.1155/2012/805850
URL
http://dx.doi.org/10.1155/2012/805850
Keywords
cytology

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