Athletic Performance and Vitamin D.
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.
Conclusions: Vitamin D may improve athletic performance in vitamin D-deficient athletes. Peak athletic performance may occur when 25(OH)D levels approach those obtained by natural, full-body, summer sun exposure, which is at least 50 ng/mL. Such 25(OH)D levels may also protect the athlete from several acute and chronic medical conditions.
Ce résultat est à remettre dans le contexte d'un déficit dans nos sociétés qu'on peut qualifier de pandémique. En tout cas, bien plus important que la grippe du porc...