Clinically, exercises that are beneficial to the knee joint include swimming, knee weight training, elliptical training, etc., as follows: i. Swimming: Adhering to swimming for 30-60 minutes daily can promote blood circulation throughout the body, which can relieve knee inflammation, while strengthening the strength and power of the muscles around the knee joint, stabilizing the knee joint, and slowing down the rate of degenerative changes in the knee joint. Second, knee self-weight training: daily adherence to knee self-weight training, such as squatting against the wall, can also promote the quadriceps and other strength and intensity, is essential to protect the knee joint. Third, elliptical machine training: 30-60 minutes of continuous adherence through elliptical machine training can protect the knee joint and enhance leg muscle strength. Patients will generally be advised in clinical practice to train in the above methods to protect the knee joint and enhance its stability to avoid clinical symptoms.