Stand up straight against the wall, then step forward with one foot about 30 cm, and the other foot will follow, holding the wall down. If your knee hurts at any angle, just squat down to the position where your knee hurts and stay still. You can do a group of three minutes or five minutes. If you are healthy, you can do it for ten or twenty minutes.
General fitness exercises can be done from three angles, 90 degrees, and then 100 degrees to help the wall get up slowly, get up a little higher, and put your feet back a little, 120 degrees or so, and do it again for the same time as before, so it will be good to practice back and forth.
Squat against the wall
Squatting against the wall is a static action. In fact, it can also become a dynamic action, and you can squat down along the cabinet or wall. In the process of completing this action, pay attention to putting your feet forward to avoid your knees exceeding your toes. Knee pressure is extremely low, and it can exercise leg strength at the same time, which is a very good rehabilitation exercise.
Knee pain is often painful when squatting, mainly because the knee will inevitably move forward when squatting. The farther the knee goes, the greater the knee pressure will naturally be, resulting in pain, while squatting against the wall will never exceed the toes because the knee position is almost unchanged, so the knee pressure will be significantly reduced.