The pelvis leans forward to do the following heel-lifting action (also called universal action, because this action is also helpful to correct O-legs and humpback): 1, find a wall, put your shoulders and hips against the wall, raise your hands, put your palms together, and put the upper wall close to your ears. 2, two toes open outward, about 90 degrees, you can stand firm, hips and thighs are clamped. 3. Next, lift the heel (that is, the toe) and stretch it upward. At this time, the knees should be clamped harder, and the hips should of course be clamped. Don't forget to stick your shoulders and ass on the wall.

4, heel 10 as a group, after finishing a group, you can stand against the wall to rest (but don't forget to clamp your hips, hips and shoulders should be against the wall). After the strength is restored, continue to do heel lifts on the wall for 10 minutes at a time. Take a break before you do the second round. How many rounds do you want to do depends on your time and physical strength. It doesn't hurt your knee. The more you do, the better. The key point is to stick to the wall and clamp your legs and hips.