Please use this identifier to cite or link to this item: https://scidar.kg.ac.rs/handle/123456789/9560
Title: Changes in athlete's redox state induced by habitual and unaccustomed exercise
Authors: Djordjevic D.
Čubrilo D.
Puzovic V.
Vuletic, Milena
Zivkovic V.
Barudzic N.
Radovanovic, Dragan
Djuric D.
Jakovljevic V.
Journal: Oxidative Medicine and Cellular Longevity
Issue Date: 1-Dec-2012
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 (O 2 -), hydrogen peroxide (H, nitrites (N O 2 -) 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 Hand TBARs as well as the decrease of the SOD and CAT activity, while after specific handball training, levels of N O 2 - 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. © 2012 Dusica Z. Djordjevic et al.
URI: https://scidar.kg.ac.rs/handle/123456789/9560
Type: Article
DOI: 10.1155/2012/805850
ISSN: 19420900
SCOPUS: 84872125908
Appears in Collections:Faculty of Medical Sciences, Kragujevac
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