Every winter is a high season for osteoarthritis, and combined with improper exercise, more than half of the recent outpatient visits have been for joint problems. And many of them are caused by square dancing. In addition, some young people, despite the cold weather, only wear thin stockings, wear less, local blood circulation is reduced, reducing the nutrition of cartilage, in the long run will also induce or accelerate the formation of arthritis. Healthy exercise methods after meals can walk for half an hour Nowadays, the more popular exercise methods in addition to square dance, there is a brisk walk, tai chi, etc., Professor Yang Liang introduced, these ways from a certain point of view, all hurt the knee health, mainly because the activity time is long, the activity is strong, improper rotation posture. The action of squatting horse stance in Taijiquan is a weight-bearing action that lasts for a long time and unknowingly damages the knee joint. A healthy and reasonable exercise method should be, after meals should not walk more than half an hour. You can walk on flat ground, not up and down the stairs, up and down the slope exercise. Weekend climbing is also likely to induce osteoarthritis, or aggravate the symptoms. Some people think that eating what to make up for, on eating the cartilage of pork ribs or chicken crisp bones to protect joint cartilage, Yang Liang introduced, these are not useful to protect joint cartilage, the wear and tear of joint cartilage is irreversible. Patients with joint disease are advised to walk less and reduce weight-bearing activities, and many elderly people carrying large bags of things in the market are not desirable. It is also important to keep warm and to exercise less and not for too long. Strengthen static muscle exercises, for example, straight leg raises, or half squats against the wall, for a short period of time, and appropriate swimming, cycling and other non-weight-bearing activities, which not only serve the purpose of exercise, but also do not significantly increase the burden on the knee joint. Winter sports warm-up activities should be done because the weather is colder, people’s muscles are more rigid, Professor Yang Liang tips, winter sports before you must do a good warm-up activities. Preparatory activities can mobilize the excitability of the central nervous system, improve the strength, flexibility and flexibility of muscles, and also improve the function of joint ligaments, enhance the elasticity of ligaments, increase the synovial fluid in the joint cavity, and prevent muscle and ligament damage. In the preparation activities, as far as possible to make the trunk and limbs of the muscles, ligaments and joints fully active, never perfunctory. And the exercise method and the amount of exercise should be reasonable. Science to increase the amount of exercise, different sex, age, level and health status of people, exercise in the grasp of the amount of exercise should be different from person to person, gradual, moderate, not on the spur of the moment overtime, excessive exercise. People are most likely to be injured when they are overworked.