Researchers say it appears a lack of vitamin D hinders the ability of muscles to contract. That raises concerns because muscle force on the bones helps build bone mass and strength.
Study finds link between vitamin D, muscle strength
February 23, 2009 A study conducted in the United Kingdom at the University of Manchester looked at 99 girls ages 12-to-14.
It found that those with lower vitamin D levels in their blood performed worse in jumping and leg muscle power tests.
