Nakamura K et al. - The 1-year incidence of falls was associated with locus length of gravity-center sway. The present study failed to find associations between vitamin D status and gravity-center sway, grip strength, or the incidence of falls. A significant association between vitamin D status and postural sway was found in the vitamin-D-insufficient subgroup, suggesting supplementation of vitamin D should be considered for those with vitamin D insufficiency.
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