Knee pain is often called knee osteoarthritis. Not only do people, but many times, doctors are prone to call it that. But the truth is that there are many conditions other than arthritis that can cause knee pain, such as hiking, going up and down stairs, straining, wearing shoes that don’t fit or are too high, shoes that are too thin, squatting for a long time, sitting for a long time, or improperly positioned knee joints, and so on. At these times, people who are a little older tend to think that this is arthritis. In fact, before “arthritis” occurs in most people, the first problem is the muscle and fascia around the joint, especially the tendons attached to the joint. As we know, joint movement is driven by the movement of the muscles or tendons, and joint pain can be caused by muscle overwork, injury, cold, or damage to the tendons. Injuries can take many forms, sometimes unconsciously, such as cold or strain, and you may not obviously feel when you have been injured, but a certain posture for a long time, hidden injuries can occur – such as a small amount of frequent release of inflammatory factors, which do not necessarily cause symptoms immediately, so you do not feel it, or sometimes have a slight sensation, and the symptoms disappear after activity or hot compresses But the underlying tissue damage has already begun to occur, and later, over time, with the same or other stimuli, the lesion will accumulate over time until one day there is a persistent or severe pain sensation. This can occur at any age, and is more common in older people. Those who have had untreated or unattended injuries in their youth also have many symptoms as they get older. Therefore, joint disease in the elderly is often a combination of osteoarthritis and soft tissue lesions, and treatment with arthritis is sometimes not always effective. In many cases, joint growth is present, but the real cause of pain is not the joint itself, but the soft tissues around the joint, and when the soft tissues are addressed during treatment, the pain disappears. Regarding the functional exercise of the joints. It is a good thing that modern people are becoming more and more aware of exercise. However, for joints, especially the knee joint, it is not always better to be more active. Especially when there is pain, many people are conflicted about what to do. In general, there must be “degrees” in any activity. When it is not appropriate to move, you must rest and recuperate. Because the knee joint is a weight-bearing joint, walking, hiking, running and other activities for the knee joint, is use, the usual sense of activity exercise for the knee joint is like letting a sick person continue to work, is to work it, not to care for it. At this time, the correct exercise method should be “static” exercise — that is, in a non-weight-bearing position, such as sitting in a chair, heel forward leg extension (called stretching the bladder meridian in Chinese medicine) or lying on the bed, the corresponding muscle stretching action, stretching and flexing the joint, or straightening the leg in the state of active intentional thigh muscle contraction, such a Exercise is much more beneficial than walking and running or hiking, and long-term adherence is good for improving soft tissue health around joints and reducing joint pain. Like climbing or running friends may be disappointed, in fact, you do not have to have concerns, you like to continue to exercise as usual, static exercise can not completely replace the activities of the whole body, just remind you to exercise discretion.