Most patients with early osteoarthritis of the knee can improve or even disappear the symptoms of pain and motion discomfort through lifestyle adjustments, as well as proper exercise and rehabilitation exercises, without the need for injections and medication. Therefore, it is essential to have the correct exercise regimen. Patients with osteoarthritis of the knee should avoid high-impact sports such as mountain climbing, horse stance, three major ball games, rope skipping, and stairs. It is also important to avoid prolonged standing, kneeling and squatting. In terms of exercise, we should follow the “middle way” and master the principle of “no or less weight-bearing exercise” to “enhance muscle strength and increase joint mobility” as the goal. In order to achieve the purpose of “increasing tolerance, reducing fatigue and enhancing resistance to disease”, we can prevent the occurrence of osteoarthrosis and the progress of the disease. In practice, some activities may be unavoidable, such as going up and down the stairs and squatting, you can take a slow and slow method, two steps up and down the stairs, one frame and one frame up and down, while pulling the handrail. When squatting, you should also support the object to lend strength, which can reduce the force on the knee joint, especially the patellofemoral joint, and slow down the pain symptoms. Many elderly people like to play taijiquan, osteoarthritis of the knee patients can also play taijiquan, but should not do squatting horse stance action, “frame” play a little higher or can. Otherwise, squatting too low is likely to intensify the wear and tear of the patellofemoral joint surface, aggravating pain symptoms. Riding a bicycle is also desirable, because most of the weight of the body pressed on the seat cushion when riding a bicycle, the knee joint force is relatively small, while cycling can maintain the mobility of the joint, the strength of the muscles around the joint is also enhanced. The best exercise program for people with osteoarthritis is swimming. When swimming, the body floats in the water and the joints do not bear weight, so the load is minimal. Moreover, swimming is a whole-body exercise, which can enhance the whole body muscle strength and multi-joint activities, and the function of multiple organs such as heart and lungs are exercised, which can effectively enhance the ability to resist diseases The following exercises are more suitable for patients with knee osteoarthritis: 1. Walking on a flat surface. Patients can walk on a flat road, pay attention to the legs should be slowly lifted and lightly released, as far as possible to extend and flex, while avoiding the knee joint bone surface impact, aggravating the injury. The walking speed can be controlled to 60 steps/minute or less, for 30-60 minutes daily. 2, walking in the pool. This is a good aerobic exercise, the weight of the joints in the water will be reduced, the knee joint can get a large degree of flexion and extension, but also a good exercise cardiorespiratory function. To the water walk mainly, interspersed with small steps for adjustment, the water depth boundary in the waist above the chest below is appropriate, walking can spread the arms, maintain body balance. Walking time 30 minutes each time. 3.Ride a bicycle. Cycling is a joint will not be weight-bearing exercise, for the maintenance of joint function, recovery, exercise can play a great role. At the same time can stimulate the metabolism of cartilage itself, increase flexibility, but patients with knee osteoarthritis should adjust the height of the seat, to sit on the seat of the two feet in the pedals, both legs can be straight or slightly bent as appropriate, the seat is too high, too low or riding uphill when pedaling hard, the knee joint have a negative impact. 4. Supine straight leg raise. Supine bed, one leg taut, lift about 30 degrees, the first time you do it can be kept 1-3 minutes, alternating between the two legs, after practicing for a period of time, then you can also practice picking up a pillow with your feet to increase the strength, 2-3 times a day. 5, half squat against the wall exercise. Back against the wall slowly slide the body down, bend the knees, repeat five to ten times a day to do one to three times. If the half squat against the wall will feel pain, it is recommended to sit knee straightening resistance exercise. In addition, more knee extension exercises can maintain the normal mobility of the joint and reduce pain symptoms.