Acute effects of resistance exercise and intermittent intense aerobic exercise on blood cell count and oxidative stress in trained middle-aged women
| Autor: | Luis Felipe Dias Lopes, Fábio Fernandes Mello, Caroline Curry Martins, Maria Rosa Chitolina Schetinger, Andréia Machado Cardoso, Vera Maria Morsch, João Felipe Peres Rezer, Margarete Dulce Bagatini, M.A. Roth |
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| Rok vydání: | 2011 |
| Předmět: |
medicine.medical_specialty
Antioxidant Physiology medicine.medical_treatment Short Communication Immunology Biophysics medicine.disease_cause Biochemistry Superoxide dismutase Middle-aged women Internal medicine Immune suppression medicine TBARS Aerobic exercise Humans General Pharmacology Toxicology and Pharmaceutics chemistry.chemical_classification Reactive oxygen species Glutathione Peroxidase biology business.industry Superoxide Dismutase General Neuroscience Resistance Training Cell Biology General Medicine Middle Aged Catalase Surgery Blood Cell Count Oxidative Stress Endocrinology Intermittent exercise chemistry Anaerobic exercise Case-Control Studies biology.protein Exercise Test Female Lipid Peroxidation business Reactive Oxygen Species Oxidative stress Biomarkers |
| Zdroj: | Brazilian Journal of Medical and Biological Research |
| ISSN: | 1414-431X |
| Popis: | The aim of this study was to compare the effect of an intermittent intense aerobic exercise session and a resistance exercise session on blood cell counts and oxidative stress parameters in middle-aged women. Thirty-four women were selected and divided into three groups: RE group (performing 60 min of resistance exercises, N = 12), spinning group (performing 60 min of spinning, N = 12), and control group (not exercising regularly, N = 10). In both exercise groups, lymphocytes and monocytes decreased after 1-h recuperation (post-exercise) compared to immediately after exercise (P < 0.05). Immediately after exercise, in both exercised groups, a significant increase in TBARS (from 16.5 ± 2 to 25 ± 2 for the spinning group and from 18.6 ± 1 to 28.2 ± 3 nmol MDA/mL serum for the RE group) and protein carbonyl (from 1.0 ± 0.3 to 1.6 ± 0.2 for the spinning group and from 0.9 ± 0.2 to 1.5 ± 0.2 nmol/mg protein for the RE group) was observed (P < 0.05). A decrease in antioxidant activities (non-protein sulfhydryl, superoxide dismutase, catalase) was also demonstrated with a negative correlation between damage markers and antioxidant body defenses (P < 0.05). These results indicate that an acute bout of intermittent or anaerobic exercise induces immune suppression and increases the production of reactive oxygen species, causing oxidative stress in middle-aged and trained women. Furthermore, we demonstrated that trained women show improved antioxidant capacity and lower oxidative damage than sedentary ones, demonstrating the benefits of chronic regular physical activity. |
| Databáze: | OpenAIRE |
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