Vitamin D plays an important role in calcium in the body. Nearly all tissues in the body have vitamin D receptors, which indicates that vitamin D functions in nearly all body tissues. In skeletal muscles Vitamin D regulates calcium, is involved in protein synthesis and is involved in skeletal muscle contraction.
Vitamin D deficiency can result in muscle weakness, which often results in falls and bone fractures in the elderly. It has been shown that supplementation with vitamin D can increase muscle strength, reduce the frequency of falls and reduce the frequency of bone fractures. This review article is in Portuguese from Brazil. It discusses the mechanisms by which vitamin D works and reviews research that has been done on this subject.
CONCLUSION: Vitamin D deficiency results in muscle weakness and poor muscle coordination. Supplementation with vitamin D when one is deficient can result in improved muscle strength and results in fewer non-vertebral fractures.
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PMID: 16358076.
Summary #007.
