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?
Message:
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) can’t be increased BMD and BMC of upper & lower limbs in sedentary postmenopausal women.
Language:
Persian
Published:
Journal of Applied Exercise Physiology, Volume:13 Issue: 25, 2017
Pages:
37 to 50
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