FNS  Vol.2 No.5 , July 2011
Oxidative Stress Biomarkers Response to Exercise in Brazilian Junior Soccer Players
Abstract: The purpose was to analyze biomarkers of oxidative stress and muscle damage in junior soccer players undergoing intermittent exercise to verify the biochemical changes. Ten trained, healthy male soccer players (age 18.3 ± 0.7 years, body mass 74.3 ± 7.4 kg, height 175.5 ± 6.7 cm, body mass index 24.14 ± 1.15 kg/m2; mean ± SD) from the junior cate-gory of an elite Brazilian football association participated in this study. They accomplished a running test (Loughbo-rough Intermittent Shuttle Test) which simulates common soccer activity patterns. Blood samples were collected before, during and immediately after the exercise for glucose, lactate, creatinine, urea, ascorbic acid, total plasma antioxidant potential, lipid hydroperoxides, malondialdehyde and creatine kinase concentrations. During the exercise no changes were observed in biomarkers, but, immediately after there was a significant decrease in total plasma antioxidant potential (ranging from 650.37 ± 66.53 µmol.L-1 to 559.95 ± 91.38 µmol.L-1, p < 0.05) while malondialdehyde and creatine kinase had increased (ranging, respectively, from 6.69 ± 0.81 µmol.L-1 to 8.35 ± 0.83 nmol.L-1 and from 272.01 ± 49.67 U.I.?L-1 to 304.65 ± 39.13 U.I.?L-1, p < 0.05). Findings suggest that the exercise protocol induced significant changes in oxidative stress selected biomarkers in the early stage of recovery. Thus, taking into account that soccer players’ competitive careers initiate very precociously being under constant physical exhaustion, further research on junior soccer players’ physiology and health are important for more effective physical and nutritional programming.
Cite this paper: nullC. Costa, M. Barbosa, J. Spineti, C. Pedrosa and A. Pierucci, "Oxidative Stress Biomarkers Response to Exercise in Brazilian Junior Soccer Players," Food and Nutrition Sciences, Vol. 2 No. 5, 2011, pp. 407-413. doi: 10.4236/fns.2011.25057.

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