Effects of additional resistance training during diet-induced weight loss on bone mineral density in overweight premenopausal women
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概要
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Bone loss accompanies a diet-induced weight loss and could be prevented with a combination of exercises. This study was conducted to examine the effects of additional resistance training during diet-induced weight loss on whole-body and selected regional bone mineral density (BMD). The participants of a 14-week weight-loss study were 42 overweight premenopausal Japanese women who were randomly placed in either a diet-only group (D; n = 21) or a diet plus resistance training group (DR; n = 21). Whole-body BMD and body composition, lumbar spine BMD, and 1/3 radial BMD were measured by dual-energy X-ray absorptiometry before and after the intervention. Bone formation and resorption markers were also measured. Thirty-five participants (83%) completed the study. Individuals in groups D (n = 17) and DR (n = 18) lost 6.2 ± 3.5 kg and 8.6 ± 3.6 kg body weight, respectively. Reductions in percentage fat mass and fat mass in group DR were significantly greater than in group D; lean mass decreased significantly in both groups. The effect of time on whole-body BMD was significant (−0.3%); however, whole-body bone mineral content, lumbar spine BMD, and 1/3 radial BMD remained unchanged. There were no significant timeby-group interactions in the whole-body and regional BMD and bone markers. These results suggest that additional resistance training during weight loss has no effect on BMD in overweight premenopausal Japanese women. Further long-term studies with large numbers of subjects are needed.
- Springerの論文
- 2008-03-30
著者
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OHKAWARA Kazunori
Health Promotion and Exercise Program, National Institute of Health and Nutrition
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NAKATA Yoshio
Institute of Health and Sport Sciences, University of Tsukuba
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TANAKA Kiyoji
Institute of Health and Sport Sciences, University of Tsukuba
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Okura Tomohiro
Institute Of Health And Sport Sciences Center For Tsukuba Advanced Research Alliance (tara) Universi
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Nakata Yoshio
Institute Of Health And Sport Sciences Center For Tsukuba Advanced Research Alliance (tara) Universi
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Tanaka Kiyoji
Institute Of Health And Sport Sciences Center For Tsukuba Advanced Research Alliance (tara) Universi
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LEE Dong
Institute of Health and Sport Sciences, Center for Tsukuba Advanced Research Alliance (TARA), Univer
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Lee Dong
Institute Of Health And Sport Sciences Center For Tsukuba Advanced Research Alliance (tara) Universi
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Ohkawara Kazunori
Health Promotion And Exercise Program The National Institute Of Health And Nutrition
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Ohkawara Kazunori
Health Promotion And Exercise Program National Institute Of Health And Nutrition
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Tanaka Kiyoji
Institute Of Health And Sport Sciences And Center For Tara University Of Tsukuba
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Tanaka Kiyoji
Institute For Molecular And Cellular Biolog
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