The main stress parts of push-ups are: biceps, abdominal muscles, thighs and gluteus maximus. What is often overlooked is latissimus dorsi. If you don't do push-ups thoroughly and don't press them to a certain extent, it won't have much influence on latissimus dorsi, but like you, you can guess the range of action, but the frequency is too fast. It is suggested that push-ups should be done slowly, so as to achieve the best effect. In addition, attention should be paid to the use of upper abdominal muscles to hold up the body, which helps to keep the body straight. That's because your back muscles are also lacking in exercise, and the things secreted by your muscles during high-intensity exercise cause muscle pain, or the tendons of your chest muscles and latissimus dorsi muscles, that is, the front and back armpits, are too tight, so you must stretch and relax your muscles. Otherwise, even if the posture is very correct, it will cause cartilage wear or soft tissue injury of the shoulder joint. Shoulder joint has a wide range of activities, large range of activities and many ways, which is one of the joints prone to failure. I hope to take it seriously and pay attention to the balance between muscle strength and flexibility. After exercise, muscles usually have muscle soreness the next day; Of course, larger muscle blocks, such as latissimus dorsi, thigh muscle, pectoralis major and so on. May be the most obvious muscle ache on the third day. This is why it is suggested that general muscles should exercise every other day, while larger muscle groups should exercise every other day in strength equipment exercise, that is, to make these muscles that may be sore rest and recover as much as possible. Hot compress on sore local muscles is also an effective method, which can promote blood circulation, improve metabolism and accelerate the relief and recovery of muscle soreness, especially with slight stretching or massage, which will accelerate the elimination of delayed muscle soreness and promote it to return to normal. It will be fine in a few days. Practice won't hurt.