期刊
CLINICAL NUTRITION
卷 32, 期 3, 页码 375-381出版社
CHURCHILL LIVINGSTONE
DOI: 10.1016/j.clnu.2012.08.014
关键词
25-Hydroxyvitamin D; Parathyroid hormone; Lean mass; Muscular strength; Muscular power
资金
- Gatorade Sports Science Institute
- National Institutes of Health, National Cancer Institute [R25CA128770]
Background & aims: The impact of vitamin D supplementation in overweight and obese adults during resistance training on body composition, muscle function, and glucose tolerance was investigated. Methods: Twenty-three overweight and obese (age: 26.1 +/- 4.7 y; BMI: 31.3 +/- 3.2 kg/m(2); 25-hydroxyvitamin D: 19.3 +/- 7.2 ng/mL) adults were recruited for participation in a double-blind, placebo-controlled trial. Participants were randomly divided into vitamin D (VitD, 4000 IU/d; 5 females, 5 males) and placebo (PL; 7 females, 6 males) groups. Both groups completed 12 weeks of resistance training. 25-hydroxyvitamin D, parathyroid hormone, body composition, and glucose tolerance were assessed at baseline and 12 weeks. Muscle function (strength and power) was assessed at baseline, 4, 8, and 12 weeks. Results: During the intervention, 25-hydroxyvitamin D increased and parathyroid hormone decreased in the VitD group (P < 0.05). Peak power was significantly increased at 4 weeks in the VitD group only (P < 0.05). Regression analysis revealed an inverse association between the change in 25-hydroxyvitamin D with the change in waist-to-hip ratio (R-2 = 0.205, P = 0.02). No other improvements were observed with supplementation. Conclusions: Vitamin D supplementation in overweight and obese adults during resistance training induced an early improvement in peak power, and elevated vitamin D status was associated with reduced waist-to-hip ratio. Clinical trial registration number: NCT01199926. (C) 2012 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据