A low Vitamin-D status is often reported by those with knee osteoarthritis (OA), and is often associated with increased pain and locomotor dysfunction.

The association between Vitamin-D levels and muscle function associated with balance recovery and falls is unclear.

As such this current study aimed to investigate the effect of Vitamin-D on pain, quadricep strength, lower limb mass and knee power function during balance recovery in people with knee osteoarthritis.

Results found that people with knee osteoarthritis with Vitamin-D insufficiency demonstrated poorer knee function during balance recovery, and greater pain and locomotor dysfunction.

Thus it was concluded that Vitamin-D insufficiency may have an adverse effect on muscle power function.


Levinger, P., Begg, R., Sanders, K. M., Nagano, H., Downie, C., Petersen, A., … Cicuttini, F. (2017). The effect of vitamin D status on pain, lower limb strength and knee function during balance recovery in people with knee osteoarthritis: An exploratory study. Archives of Osteoporosis, 12. Doi: 10.1007/s11657-017-0378-4