Exercising with a flare-up of knee arthritis

Staying active when knee osteoarthritis flares helps the joint stay flexible. But activity should be modified to take pressure off the knee. That could mean walking instead of running, or playing pickleball instead of tennis. Other activities that are easy on the joint include riding a stationary bike, using an elliptical machine, practicing yoga, swimming, walking pain-free distances on flat terrain, doing upper body strength training, or core strengthening. Warming up before activity helps to loosen stiff knee joints.