Duck sitting posture has a great influence on joints. I suggest you practice hero sitting. People with knee injuries and back problems should not practice this action. It turns out that this action is so difficult for men ... I didn't feel it before. Practice the following postures more, and you will get better slowly. Always keep practicing step by step and comfortably. Don't force it. You can practice before going to bed every day. Ankle joint exercise, knee joint rotation and bending, lower body swing, knee and hip extension, simple crescent, suspension bridge, pigeon extension, one-leg exchange extension, sunset, etc. You can search the name of orchid yoga+posture on Tudou, and there are corresponding teaching videos. If you want to grow taller, I recommend you to practice yoga to cultivate your posture, so that you will look taller. Of course, if your posture is not good, don't tell me that you don't want to help with childbirth and pregnancy preparation. Regular practice of breathing, posture, relaxation and yoga sound meditation in yoga is very helpful for improvement. Duck sitting refers to a sitting posture in which the calf, sole and thigh are side by side, and the buttocks are completely attached to the ground like ducks. Ducks just look comfortable when sitting, but when they are human sisters, they form a very cute sitting posture. Sitting in a duck is really tempting, attractive and dreamy! Women are born to sit ducks, but they must be resilient. Men are not suitable. Flexibility exercise is to improve the flexibility of muscles, tendons, ligaments and other soft tissues across joints. The flexibility of knee joint mainly develops the extensibility of leg and facial muscles. The development of knee bending ability mainly develops the extensibility of anterior leg muscles, while the flexibility of hip joint mainly develops the ability of hip opening before and after and the flexibility of knee joint. Often combined with exercises, called leg flexibility exercises. Commonly used exercises include active or passive leg press, kicking, swinging and cheating.