Your posture is wrong, your arm is sore, which means you are focused on your forearm. This is wrong, focusing on the hind legs, abdomen and buttocks, and slightly hunched back. After going down, the back is still slightly arched, don't straighten out, don't pout and close your hips. There are not many groups of rules. The number of each group depends on your own personal physique.

Stop sweating and slight abdominal fever, and twist your waist to relax. Basically, if you are sour for 5 times, you will not practice, so as to avoid muscle fatigue. Drink a glass of skim milk at room temperature after exercise 15 minutes. You can also take glutamine (one of the basic amino acids, which can relieve muscle fatigue and increase the speed of muscle cell division and proliferation, unlike creatine, which has side effects). I tell you, even if you don't feel sore, your abdomen will be slightly hot, and your action is wrong. You'd better find someone to watch you and help you correct your movements.

And don't stand, even if you are in good health, you need to step by step. Standing requires not only strength but also balance, so take your time. If you are kneeling now, you will feel very tired and difficult to do after correcting the action. If you find that you can't do it after correcting it. Just find a wall and roll on it while correcting your movements. It's like doing a squat. The premise is to close your hips and bow your waist.

Because of the low cost of sticking to the wall, the fitness effect is not better than the first two, but it is still very useful to do more groups.