Document Detail

Unipedal standing exercise and hip bone mineral density in postmenopausal women: a randomized controlled trial.
MedLine Citation:
PMID:  19521657     Owner:  NLM     Status:  MEDLINE    
The aim of this study was to test the effect of unipedal standing exercise on bone mineral density (BMD) of the hip in postmenopausal women. Japanese postmenopausal women (n = 94) were assigned at random to an exercise or control group (no exercise). The 6-month exercise program consisted of standing on a single foot for 1 min per leg 3 times per day. BMD of the hip was measured by dual-energy X-ray absorptiometry. There was no significant difference in age and baseline hip BMD between the exercise group (n = 49) and control group (n = 45). Exercise did not improve hip BMD compared with the control group. Stepwise regression analysis identified old age as a significant determinant (p = 0.034) of increased hip total BMD at 6 months after exercise. In 31 participants aged >/=70 years, the exercise group (n = 20) showed significant increase in the values of hip BMD at the areas of total (p = 0.008), intertrochanteric (p = 0.023), and Ward's triangle (p = 0.032). The same parameters were decreased in the control group (n = 11). The percent changes in hip BMD of the exercise group were not significantly different from those of the control group either in the participants with low baseline hip total BMD (<80% of the young adult mean) or high baseline hip total BMD (> or =80% of the young adult mean). In conclusion, unipedal standing exercise for 6 months did not improve hip BMD in Japanese postmenopausal women. Effect of exercise on hip total BMD was age dependent. In participants aged > or =70 years, the exercise significantly increased hip total BMD.
Akinori Sakai; Toshihisa Oshige; Yukichi Zenke; Yoshiaki Yamanaka; Hitoshi Nagaishi; Toshitaka Nakamura
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2009-06-12
Journal Detail:
Title:  Journal of bone and mineral metabolism     Volume:  28     ISSN:  1435-5604     ISO Abbreviation:  J. Bone Miner. Metab.     Publication Date:  2010  
Date Detail:
Created Date:  2009-12-24     Completed Date:  2010-03-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9436705     Medline TA:  J Bone Miner Metab     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  42-8     Citation Subset:  IM    
Department of Orthopaedic Surgery, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan.
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MeSH Terms
Absorptiometry, Photon
Aged, 80 and over
Body Mass Index
Bone Density*
Exercise Movement Techniques*
Fractures, Bone / etiology,  prevention & control
Middle Aged
Organ Specificity
Osteoporosis, Postmenopausal* / complications
Pelvic Bones / chemistry*

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