Introduce a method to you; Kneeling posture: Kneel on the ground like a Japanese woman every day, but usually do it at night and in the morning and walk back and forth. Keep exercising for an hour every day. If you are ashamed, you can also do it in bed. As long as you persist for one month, you can see the effect. Leko's expert's knee jump method has a better effect, especially on the thigh. You can do it. It's really good!