Does 12 weeks of moderate-intensity aerobic exercise (W-WJMIEP-R) effects on bone density and content of upper and lower limbs in sedentary postmenopausal women?
Author(s):
Abstract:
Background &
Purpose
Osteoporosis is a disease where decreased bone strength increases the risk of a broken bone. Therefore, the purpose of this study was to investigate the effect of 12 weeks of moderate-intensity aerobic exercise on bone mineral density (BMD) and content (BMC) of the upper & lower limbs in sedentary postmenopausal women.Methods
Twenty sedentary postmenopausal women with an average age of (60±2.12 yr) and BMI (29.46±3.24 kg.m2) voluntarily and bona fide participated in this study and then subjects were randomized to one of two groups: Exercise (n =11) and control (n =9). Exercise group performed 12 weeks moderate-intensity exercise 65-70% heart rate reserve (HRreserve), three sessions per week, and per session 50-60 (min), but the control group participated in no intervention. Evaluation of the upper & lower limbs BMD and BMC were measured by DXA machine in subjects. Data analysis included descriptive and inferential (paired samples t-test & ANCOVA test) statistics using SPSS-23 software and a significance level of P≥0.05 was considered.Results
The results showed that there was no significant difference between upper and lower limbs BMD of exercise group compared to the control group after 12 weeks of moderate-intensity aerobic exercise (P>0.05), except in BMC right leg (P≤0.05). Furthermore, the inter-group results showed no significant difference in any of the variables (P>0.05), except in BMC lumbar vertebral in the control group (P≤0.05). Conclusion
The results indicate that 12 weeks of moderate-intensity aerobic exercise such as walking & jogging program (W-WJMIEP-R) cant be increased BMD and BMC of upper & lower limbs in sedentary postmenopausal women.Keywords:
BMD , BMC , aerobic exercise , Menopause
Language:
Persian
Published:
Journal of Applied Exercise Physiology, Volume:13 Issue: 25, 2017
Pages:
37 to 50
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