In a new study, scientists found that increased levels of active Vitamin D can aid in enhancing muscle strength. Researchers in this study found that the active form of Vitamin D in the blood, 1,24-dihydorxyvitamin D3 (1a,25(OH)2D3), was strongly associated with some aspects of lower limb strength including jump height, power, and velocity.
116 people made up of 37 men and 79 women ages 20 – 74 participated in the study. Participants had their Vitamin D levels identified and evaluated. Additionally physical characteristics like lean mass and body fat as well as medical histories were also recorded. Researchers found that participants with increased lean muscle mass and bulk had increased levels of the active form of Vitamin D in their blood. Also researchers found women with a reduced body fat composition were not as likely to have higher levels of the inactive form of Vitamin D in their blood, which is a marker of a Vitamin D deficiency. Actually researchers were surprised to find that the active form of Vitamin D was associated with lean mass and not body fat which was what they were expecting.
Looking at the different forms of Vitamin D in the same study makes things more complex for researchers trying to understand the role of Vitamin D and muscle function optimization. Further studies should be completed.
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