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"Sport Medicine Journal" No.21 - 2010
ARTICLE – abstract


Exercise and oxidative stress

Radu Marius-Daniel, Schiopu Stelian, Coprean Dragomir
Department of Physiology, Faculty of Natural Sciences, University Ovidius Constanta, Romania

Abstract

Physical activity rise the ROS (reactive oxygen species) production at the level of somatic muscles but also to other tissues, succession to oxygen flux rise through mitochondria’s and to physiologic specific of the tissue. Mechanisms of ROS generation are excluding reciprocal during physical activity and it seems that after one acute physical effort the mechanism responsible by the ROS generation could be mitochondrial chain of electrons conveyor while after one chronically physical effort the ROS concentration is rising owing to physiological specific of the respective tissue. The cellular antioxidant system present vital importance in tissues protection against fatal action of the reactive oxygen species, but until now it doesn’t known exactly if the first activate the antioxidant system which induce enzymes either non-specifically antioxidant system. We can concluded from our experiments that the physical efforts contribute to oxidative stress installation right after the physical activity stops, an practical information which come to support the sportive performance optimizations. The aim of the present experimental model is to evaluate the biochemical status of the oxidative stress by some parameters determination at the level of the somatic muscles and other organs too, after just one training.
 
Key words:

free radicals, exercise, oxidative stress, antioxidant status




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