Osteoarthritis of the knee can get in the way of physical activity. For people with this condition, strong muscles may be the key to maintaining strong physical function.
In a recent study, people with severe knee osteoarthritis had more trouble on a test of physical ability when they had poor muscle strength in their legs. Their performance on the test was not influenced by pain, age or body weight.
The authors said that muscle strengthening treatments may help people with severe osteoarthritis of the knee.