| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Research Abstract |
This study investigated the effects of daily walking steps on bone mineral density (BMD) at femoral neck (FN) and lumber spine (LS) in postmenopausal Japanese women. The subjects were 340 women with 10 years since menopause or more. BMD was measured by dual X-ray absorptiometry. A triaxial ac-celerometer measured walking steps and converted acceleration into metabolic equivalents (METs). PA at 3 METs or more was expressed in Exercise (Ex:METs x hours). While there was no correlation between walking steps and BMD at both regions, Ex was positively associated with FN-BMD. This positive effect remained significant after adjustment for confounding factors.
Walking steps do not provide information on the intensity of the activities in daily living. On the oth-er hand, Ex reflects intensity of the activities. It is suggested that FN-BMD has a much closer relation- ship with the intensity of PA than daily steps in postmenopausal Japanese women.
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