The effects of strength,aerobic, and concurrent exercise on skeletal muscle damage in rats |
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| Authors: | Anderson Rech MS Regis Radaelli MS Adriano M. De Assis PhD João R. Fernandes MS Aline Longoni PhD Magdolna M. Vozari‐Hampe PhD Ronei S. Pinto PhD Cristiane Matté PhD |
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| Affiliation: | 1. Exercise Research Laboratory, School of Physical Education, Federal University of Rio Grande do Sul, , Porto Alegre, RS, 90690‐200 Brazil;2. Department of Biochemistry, Federal University of Rio Grande do Sul, , Porto Alegre, RS, Brazil |
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| Abstract: | ![]()
Introduction: In this study we examined oxidative stress and skeletal muscle damage resulting from acute strength, aerobic, or concurrent exercise in rats. Methods: The animals were divided into control (C), strength (SE), aerobic (AE), and combined (CE) exercise groups. They were euthanized at 3 different time‐points (6, 24, and 48 h) after acute exercise. Results: SE exercise rats had increased dichlorofluorescein oxidation at 6 h post‐exercise and decreased superoxide dismutase activity at all time‐points. Glutathione peroxidase activity and sulfhydryl levels were increased in the AE group at 48 h post‐exercise. Serum lactate dehydrogenase activity was increased in the SE and CE groups at 24 h and in the AE group at 48 h. Echo intensity was elevated at 24 h for all groups. Conclusions: Forty‐eight hours was sufficient for complete recovery from oxidative stress and muscle damage in the SE and CE groups, but not in the AE group. Muscle Nerve 50 : 79–86, 2014 |
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| Keywords: | concurrent exercise exercise recovery gastrocnemius muscle damage oxidative stress |
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