The cold air strikes suddenly, Beijing "enters the winter with one click", and everything enters the stage of closing Tibet. Those who pay attention to health care must have already worked hard to prepare a winter health care plan. In addition to nourishing, proper exercise in winter is very beneficial to the human body. However, we must pay special attention to the protection of the knee joint at this time, because it is more vulnerable and vulnerable than other seasons. Today, the doctor of Orthopedics Department of Traditional Chinese Medicine came to share with you some tips on knee protection in winter. The proportion of patients who come to the hospital in winter with discomfort in the knee joint has increased significantly. In winter, in order to conserve energy, the body gathers yang qi and blood, and the blood circulation in joints is much lower than that in other seasons. In this case, the elasticity of the ligaments and muscles in the joint is far less than usual. Whether you sit up for a long time, walk daily or exercise, it is easy to have ligament and muscle injuries. Therefore, when changing positions and movements, it is necessary to be gentle, so that the joints have a full adaptation process. Before exercise, it is necessary to do a full warm-up, and start the exercise after the joints reach the best state. It is worth mentioning in the arrangement of focusing on joint heat preservation and knee protection that everyone must keep the joint warm while exercising in winter to prevent unnecessary damage. Because it is widely used and greatly affected by the seasons, it is particularly important to keep the knee warm. In winter, when the elasticity of ligaments and muscles decreases, the protection of the joint itself will also be significantly weakened. The stability of the joint itself is reduced, and the cartilage and meniscus, which have buffer functions, are prone to more wear than usual. Therefore, it is recommended that people wear knee pads at ordinary times, which can not only keep warm to a certain extent, enhance local circulation, but also play a role in buffering and protecting joints, slowing down the process of degeneration and avoiding damage. Again, if there are joint diseases, severe or repeated symptoms, or joint diseases confirmed by imaging examination, please see a doctor in time. Exercise the knee joint Try these two moves. Exercising the endurance and stability of the muscles related to the joint has a great effect on protecting the joint. In addition to squatting against the wall, we will teach you two ways to exercise the knee joint. Method 1: Look for a wall, with the side of the body facing the wall, sitting with the face parallel to the wall. Clamp a 5-10cm thick soft and light object between the outer knee and the wall with a leg close to the wall, such as towel fold, foam block, etc. Keep the object from falling and slowly bend and extend the knee joint, with the range of motion of the lower leg about 90 °. From being perpendicular to the ground to being flat, slowly put it back in groups of 10 times. After one side of the chair is finished, adjust the position of the chair to the other side. Do 2-4 groups according to your own situation, once a day, to improve joint stability and correct the force line. Method 2: Find a horizontal bar or parallel bar, or a place that is stable enough to support your lower body in the air. Support the lower part of the body. During the suspension, gently lift your legs alternately, and then gently step down like stepping on the water on the road, and quickly alternate your legs. The movements should be light and agile. Each side should step on 15 times as a group. After a break of two or three minutes, you can do the next group. You can carry out 2-4 groups according to your own situation, once a day. This action supports your upper body