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:: Volume 18, Issue 2 (May & June 2013 2013) ::
pajoohande 2013, 18(2): 57-63 Back to browse issues page
Eight-week resistance training with vitamin D supplementation in postmenopausal women: Effects on skeletal muscle
Abbas Saremi *, Nader Shavandi, Hajar Vafapour
Assistant Professor, Department of Sport Sciences, Arak University, Arak, Iran , a-saremi@araku.ac.ir
Abstract:   (5779 Views)
Background and Aim: Vitamin D has been shown to play a role in the development and preservation of muscle mass and function, which may enhance the benefits of training. The purpose of this study was to determine the effects of 8 weeks of resistance training with and without vitamin D supplementation on body composition in sedentary postmenopausal women. Materials and Methods: In this experimental study with pretest – posttest design, 45 elderly women (aged 56.7±3.4 y) were randomly assigned to resistance training only (RG), vitamin D supplementation (50000IU/w) plus resistance training (VR) or non-exercising control (CG) groups. Resistance training program was performed 50-60 min/d, 3 d/w, for 2 months. The non-exercise control group was asked to maintain their usual physical activities during the 2-month study period. Serum levels of insulin-like growth factor-I and 25-hydroxyvitamin D, body composition and muscle function were assessed before and after the training period. Results: Vitamin D supplementation increased serum 25-hydroxyvitamin D levels significantly (p<0.05). Resistance training caused significant increase in serum levels of insulin-like growth factor-I, muscle mass and muscle strength (p<0.05). Vitamin D supplementation in conjunction with resistance training led to greater increases in serum levels of insulin-like growth factor-I, muscle mass and muscle strength (p<0.05). ‍Conclusion: These results suggest that resistance training is safe and effective for increasing muscle mass and strength in older adults and that a combination of vitamin D can enhance some of the beneficial effects of training over a two-month period.
Keywords: Menopause, Muscle Strength, Resistance Training, Vitamin D
Full-Text [PDF 337 kb]   (1605 Downloads)    
Type of Study: Original | Subject: Medicine
Received: 2017 | Accepted: 2017 | Published: 2017
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Abbas Saremi, Nader Shavandi, Hajar Vafapour. Eight-week resistance training with vitamin D supplementation in postmenopausal women: Effects on skeletal muscle . pajoohande. 2013; 18 (2) :57-63
URL: http://pajoohande.sbmu.ac.ir/article-1-1513-en.html


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