In daily clinics, patients with ankylosing spondylitis often ask, “What kind of activities are recommended for us to do?” “Is it possible to do strenuous exercise?” , “Can I play basketball?” . In order to answer this question, we need to first understand what kind of disease ankylosing spondylitis is and what the purpose of exercise is. Simply put, ankylosing spondylitis is an autoimmune inflammatory disease that mainly affects the medial joints and, if left untreated, can cause the joints to straighten and lose joint motion. Therefore, we need certain exercises along with medication to prevent the ankylosis from hardening and to maximize the function of the joints. Once we understand this, we know what kind of exercise is better. First, exercises that are not weight-bearing and that allow the joints to move without a direct relationship to the amount of exercise: the first choice of exercise that meets this criterion is swimming, because the water is horizontal and the water is buoyant, so the joints can move well without too much effort; however, the amount of exercise in swimming is relatively large and requires gradual adaptation, and patients with neck involvement have some difficulty in exercising; in addition, swimming requires a site In addition, there are requirements for the venue. Secondly, you can choose mat exercises: such as gymnastics, radio exercises, tai chi, yoga, etc., without much running and jumping, and can increase the flexibility of the joints; however, there will be some difficulties for patients in the middle and late stages, and it is not necessary to do every movement in place, as long as the joints can fully move and stretch. Third, cycling: cycling is not weight-bearing on the lower limb joints, especially the hip, knee and ankle can be fully exercised, but the activity of the thoracic and lumbar spine is insufficient, especially for patients with hip and knee joint involvement. The fourth, sit-ups and “small swallow fly”, these two movements can exercise the muscle strength of the waist and back, and can effectively increase the movement of the spine, for patients with ankylosing spondylitis is very good, but its muscle strength requirements of the waist and back abdomen is relatively high, the acute stage and the middle and late stage patients can not be completed, can be used as a disease recovery option during the process. Finally, it is important to remember that exercise alone cannot treat ankylosing spondylitis and must be supplemented with medication. In the acute phase of pain is not suitable for exercise, in remission and recovery period is a good time to exercise, at this time must follow the ‘gradual, persistent, the amount of effort to do’ policy, after unremitting efforts to make your joints move freely.