Brazilian Journal of Medical and Biological Research | |
Acute effects of resistance exercise and intermittent intense aerobic exercise on blood cell count and oxidative stress in trained middle-aged women | |
A.m. Cardoso2  M.d. Bagatini1  M.a. Roth1  C.c. Martins2  J.f.p. Rezer2  F.f. Mello1  L.f.d. Lopes1  V.m. Morsch2  M.r.c. Schetinger2  | |
[1] ,Universidade Federal de Santa Maria Centro de Ciências Naturais e Exatas Departamento de QuímicaSanta Maria RS ,Brasil | |
关键词: Intermittent exercise; Anaerobic exercise; Oxidative stress; Immune suppression; Middle-aged women; | |
DOI : | |
来源: SciELO | |
【 摘 要 】
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.
【 授权许可】
CC BY
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