Osteoarthritis of the knee is often due to joint pain, and does not want to move, can not move, resulting in disuse atrophy, if you do not realize this point, insist on “pain” does not “move”, day after day will lead to want to “move If you don’t realize this, and insist on not “moving” because of “pain”, you will not be able to “move” because the decrease in muscle strength means that there is not enough “power”. On the contrary, many people with osteoarthritis of the knee think that they must exercise to keep their joints functioning, and some even think that they have this disease because they are older and less active, and the more painful it is, the more they have to move. So, they repeatedly stretch their knees, rub their patellas, shake their knees, and even walk long distances for 1 to 2 hours or go hiking or running. Others use fitness equipment to strengthen their knee joints. In fact, this is incorrect, because excessive activity increases the wear and tear on the joint cartilage and can induce synovial congestion causing joint effusion. Therefore, patients with osteoarthritis of the knee should advocate more correct and scientific exercise, whether you are in the onset or recovery phase. In the acute phase, i.e., severe pain, sensitivity and functional limitation, you should avoid weight-bearing on the affected limb, prevent the invasion of cold and dampness, and give comprehensive treatment such as local regular systemic massage, physical therapy and medication as early as possible. After the pain is relieved, exercise can be carried out appropriately within the scope of not aggravating the symptoms. This means not overstretching the joint, but also increasing the strength and flexibility of the joint, stretching the muscles and ligaments, and strengthening the muscles to make the affected joint stronger and reduce the stress on the joint. For example, strengthening the muscles of the thighs can reduce the stress on weight-bearing joints such as the knees and hips. Even simple exercises are effective, such as walking, which can reduce knee pain by about 30%. If the muscles around the joint have some strength, you will find it much easier to walk or perform general and daily activities on the knee. Lower impact exercises also help to stabilize the joint. Finally, plyometric exercises such as squatting, climbing and stair climbing should be performed under weight, following a moderate, gradual and consistent approach during exercise. Tip: When you have to go up and down steps, it is best to hold a ladder or a cane, not to be in a position for a long time, pay attention to local warmth.