Détail de la notice
Titre du Document
Athletic Performance and Vitamin D
Auteur(s)
CANNELL John J. ; HOLLIS Bruce W. ; SORENSON Marc B. ; ...
Résumé
CANNELL, J. J., B. W. HOLLIS, M. B. SORENSON, T. N. TAFT, and J. J. ANDERSON. Athletic Performance and Vitamin D. Med. Sci. Sports Exerc., Vol. 41, No. 5, pp. 1102-1110, 2009. Purpose: Activated vitamin D (calcitriol) is a pluripotent pleiotropic secosteroid hormone. As a steroid hormone, which regulates more than 1000 vitamin D-responsive human genes, calcitriol may influence athletic performance. Recent research indicates that intracellular calcitriol levels in numerous human tissues, including nerve and muscle tissue, are increased when inputs of its substrate, the prehormone vitamin D, are increased. Methods: We reviewed the world's literature for evidence that vitamin D affects physical and athletic performance. Results: Numerous studies, particularly in the German literature in the 1950s, show vitamin D-producing ultraviolet light improves athletic performance. Furthermore, a consistent literature indicates physical and athletic performance is seasonal; it peaks when 25-hydroxy-vitamin D [25(OH)D] levels peak, declines as they decline, and reaches its nadir when 25(OH)D levels are at their lowest. Vitamin D also increases the size and number of Type II (fast twitch) muscle fibers. Most cross-sectional studies show that 25(OH)D levels are directly associated with musculoskeletal performance in older individuals. Most randomized controlled trials, again mostly in older individuals, show that vitamin D improves physical performance. Conclusions: Vitamin D may improve athle
Editeur
Lippincott Williams & Wilkins
Identifiant
ISSN : 0195-9131 CODEN : MSPEDA
Source
Medicine and science in sports and exercise A. 2009, vol. 41, n° 5, pp. 1102-1110 [9 pages] [bibl. : 75 ref.]
Langue
Anglais
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