Static balance semi-squat standard posture: the feet and legs are close together (not just the heels, but the whole feet are close together), the knees should be slightly clamped (not too hard, a little hard is enough), the hands should be raised horizontally in front, and the eyes should look straight ahead. Half squat, the angle between thigh and calf is about 90 degrees. If you really can't hold it, you can make it bigger. Do it two or three times a week for fifteen to twenty-five minutes each time. I'm always twenty-five minutes. You can start in fifteen minutes and then increase gradually. Note: During the half squat, keep your whole body still, keep your feet and legs together, keep your knees clamped, and keep your hands flat, otherwise the practice effect will be greatly reduced. After finishing, do enough relaxation exercises to rest your body. You may feel a little tired, but you must stick to it. Persistence is victory! The standard posture of static squat: back against the wall, legs and feet together, knees clamped. Half squat is also about 90 degrees, but there are some differences. After crouching for 30 seconds, get up slowly, lean against the wall, stand up straight, then squat down to the original position, squat down for another 30 seconds and then get up slowly. Do it five or six times at a time There is also a semi-squat method that works well: find a handle to hold it. Hold the handle with both hands and put your feet together. (This time, the knees don't need to be clamped, and the legs and feet should be close together), and the chest should be stretched out and the abdomen should be closed (this is the most important point, and it should be maintained all the time. Only in this way can it be effective), squat half-way, with an angle of about 90 degrees, stand on tiptoe, heel off the ground, back straight, legs and feet together, chest out and abdomen in, and body motionless. Stick to it for ten to fifteen minutes, and then get up and do enough relaxation exercise. I often do these exercises, so I am in good health.