Document Type : Original Article

Authors

1 Department of Physical Education and Sport Sciences, Faculty of Humanities, Rasht Branch, Islamic Azad University, Guilan, Iran

2 Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Guilan University, Guilan, Iran

Abstract

Introduction: In aged women, elevated levels of some proinflammatory markers are risk factors for the development of diseases. The present study investigated the effect of 12-week walking at two different intensities on inflammatory factors in elderly woman.
Materials and Methods: Thirty untrained elderly women (60—75 years) randomly divided into three groups. Moderate tempo walking group (MTWG, n=11), Brisk walking group (BWG, n=10), and the control group (CG, n=9). The MTWG, walked at 50—55% maximum heart rate reserve (HRRmax) and the BWG walked at %70-75 HRRmax. Both walking groups trained 12 weeks, 3 sessions per week, starting from 30 to 60 minutes and the CG remained untrained. Maximal oxygen consumption (VO2max), body composition, leukocyte counts (WBC) and plasma levels of Tumor necrosis factor-alpha (TNF-α), were measured before and after the study period. To analyze the data, oneway analysis of variance, Scheffe test and dependent t-test was used (P≤0.05).
Results: VO2max, increased significantly in BWG. Body weights, percent body fat (p =0.000), body mass index (p = 0.003) significantly decreased, and percent muscle (p = 0.000) increased in both exercise groups. Percent visceral fat (p = 0.028) significantly decreased in BWG. Also, BWG showed a significant reduction in WBC counts compared to baseline levels (p = 0.004). There were no significant differences in the plasma levels of TNF-α between the groups.
Conclusion: The results showed that regular walking program can affect body composition in elderly women, however, it may not be effective in reducing systemic inflammatory markers. 

Keywords

Main Subjects

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