Effect of resistance training during the month of Ramadan on antioxidants and oxidative stress biomarkers in recreational bodybuilders |
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Authors: | Kaïs Elabed Khaled Trabelsi Zohra Ghlissi Stephen R Stannard Christiaan Leeuwenburgh Kamel Jamoussi |
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Institution: | 1. Laboratory of Pharmacology, Faculty of Medicine, University of Sfax, 3029 Sfax, Tunisia;2. School of Sport and Exercise, Massey University, Palmerston North, New Zealand;3. Division of Biology of Aging, Department of Aging and Geriatric Research, College of Medicine, Institute on Aging, University of Florida, Gainesville, FL 32611, USA;4. Department of Biochemistry of the Hedi Chaker University Hospital, 3029 Sfax, Tunisia |
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Abstract: | The aim of this study was to investigate the effect of a hypertrophic training program during Ramadan on levels of circulating antioxidants and oxidative stress biomarkers in trained bodybuilders. Eight male bodybuilders visited the laboratory two days before the start of Ramadan and on the 29th day of Ramadan (end-Ramadan), to undergo anthropometric measurement, to complete a dietary questionnaire, and to provide fasting blood and urine samples. Plasma thiobarbituric acid reactive substance and protein-bound carbonyl concentrations were measured in the plasma to indicate lipid and protein oxidation, respectively. These did not change significantly during Ramadan. Superoxide dismutase and glutathione peroxidase activities, indices of erythrocytes antioxidant status, increased by 24% (p = 0.011) and 12% (p = 0.01), respectively, from before to the end of Ramadan. However, erythrocyte catalase activity did not change significantly. Uric acid values increased by 17% (p < 0.001) from before to the end of Ramadan, but ferric-reducing ability and Vitamin E levels of the plasma remained unchanged. A significant correlation was found between uric acid values and urine specific gravity (r = 0.70; p < 0.05) only at the end of Ramadan. We conclude that continuing a hypertrophic training program during Ramadan fasting does not increase oxidative stress but does increase antioxidant status in bodybuilders. |
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Keywords: | bodybuilding antioxidants oxidative stress Islamic fasting dietary intake |
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