Exercise is effective for some patients with knee pain, such as swimming training, exercising the thigh muscles, and kicking in a seated position can be effective in relieving some knee pain. When the knee disease is in the acute stage, exercise recovery is not recommended. 1. Swimming training: the human body is affected by the buoyancy in the water, the knee joint is not weight-bearing at all. Therefore, with light weight bearing on the joints, you can train the joint function and the strength of the surrounding muscles to relieve the pain symptoms. 2. Exercise thigh muscles: strong thigh muscles can indirectly reduce the pressure between the patella and femur, reduce wear and tear, delay the aging of the knee, moderate exercise can increase the knee joint synovial fluid, keep the joint cavity moist, reduce cartilage wear and tear. 3. Seated kicking: choose a chair with a backrest, grab the edge of the chair with both hands, close your legs together, kick your legs and slowly stretch them forward, hold them for a few seconds when they reach the highest point, return to the original position of your legs and feet, and repeat for many times. Patients can use the above ways to relieve knee pain, when you can not get relief, it is recommended to seek timely medical treatment, but also do not blindly exercise.