The effects of vitamin D(3) supplementation on serum total 25[OH]D concentration and physical performance:a randomised dose-response study

Close, G.L., Leckey, J., Patterson, M., Bradley, W., Owens, D.J., Fraser, William and Morton, J.P. (2013) The effects of vitamin D(3) supplementation on serum total 25[OH]D concentration and physical performance:a randomised dose-response study. British Journal of Sports Medicine, 47 (11). pp. 692-696. ISSN 0306-3674

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Abstract

Background: Vitamin D deficiency is common in the general public and athletic populations and may impair skeletal muscle function. We therefore assessed the effects of vitamin D supplementation on serum 25[OH]D concentrations and physical performance. Methods: 30 club-level athletes were block randomised (using baseline 25[OH]D concentrations) into one of three groups receiving either a placebo (PLB), 20 000 or 40 000 IU/week oral vitamin D for 12 weeks. Serum 25 [OH]D and muscle function (1-RM bench press and leg press and vertical jump height) were measured presupplementation, 6 and 12 weeks postsupplementation. Vitamin D deficiency was defined in accordance with the US Institute of Medicine guideline (0.05). Conclusions: Both 20 000 and 40 000 IU vitamin D supplementation over a 6-week period elevates serum 25 [OH]D concentrations above 50 nmol/l, but neither dose given for 12 weeks improved our chosen measures of physical performance.

Item Type: Article
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
University of East Anglia > Faculty of Medicine and Health Sciences > Research Groups > Musculoskeletal Science
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Depositing User: Pure Connector
Date Deposited: 25 Sep 2013 02:00
Last Modified: 03 Sep 2018 09:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/43443
DOI: 10.1136/bjsports-2012-091735

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