The correct way to do sit-ups is 1. First, put your feet away. Put your feet on the foam cotton. 90 degrees to the ground, and then lie on your back. The head doesn't need to lean on the supine board. Some people lie directly on the supine board, which is not right. When doing sit-ups, people should lie down, lower their center of gravity and cover their ears with their hands. Get up slowly and tighten your abdominal muscles, pause slightly, that is, roll up your abdomen, and then slowly lower your body back to its original position. Stick a supine board on your back, and you can start the next cycle. When doing sit-ups, you should tuck in your abdomen. Instead of lifting the waist, it is wrong to lift the waist. First of all, instead of exercising abdominal muscles, exercise iliopsoas muscles.

Secondly, it will put a lot of pressure on the lumbar spine and easily lead to injury. The correct way: roll up the upper body to form an arc. For beginners, you may feel very tired just after doing a few sit-ups. You can't do it. When you can't, you might as well put your hand on your abdomen and get up slowly.

It will be easier to do with a loan, and you must relax when doing sit-ups. You can't be too nervous. It's easy to strain when it's tight. Remember not to move the straddle when sitting. The cross section must be close to the supine board. Otherwise, you can't practice abdominal muscles.

For beginners, sit-ups can be exhausted and do as much as you can.

Beginners should not do too many sit-ups at a time. Beginners may wish to divide the exercises into several groups, such as 2 to 3 groups, and one group does 10 to 20. After finishing a group, the whole person can lie on his back and hold his head high. Stretch forward as far as possible, so stretch the abdomen, and get up and do sit-ups after about 1 minute.