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

Close, Graeme L., Leckey, Jill, Patterson, Marcelle, Bradley, Warren, Owens, Daniel J., Fraser, William D. and Morton, James 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
Related URLs:
Depositing User: Pure Connector
Date Deposited: 25 Sep 2013 01:00
Last Modified: 14 May 2020 23:55
URI: https://ueaeprints.uea.ac.uk/id/eprint/43443
DOI: 10.1136/bjsports-2012-091735

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