Heike A. Bischoff, MD, MPH, Robert B. Brigham, Arthritis and Musculoskeletal Diseases Clinical Research Center, Brigham and Women's Hospital and Division on Aging, Harvard Medical School; Boston, MA, USA.
There is increasing evidence that vitamin D supplementation may improve musculoskeletal function and prevent falls in older persons at risk for vitamin D deficiency. One basic concept appears to be the direct effect of vitamin D on muscle strength. Highly specific receptors for 1,25-dihydroxyvitamin D are expressed in human muscle tissue and it has been suggested that these nuclear receptors promote protein synthesis in the presence of 1,25-dihydroxyvitamin D, eventually leading to improved strength.
Key words: vitamin D, muscle strength, function, elderly, falls.
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