Sit-ups are a physical education entrance examination in many places in China. At the same time, it is also an exercise method that can improve the strength and core stability of abdominal muscles, protect the back and improve the posture. But the wrong sit-ups do great harm to the body, so it is very important to master the correct posture.

Breathing method: Exhale when the upper body curls forward and inhale when leaning back. Don't hold your breath.

In the process of sit-ups, be careful not to: when the abdomen is closed, the buttocks are raised; Sit from one side to the other; Legs too straight or too bent, etc. The general rule of the senior high school entrance examination is that 49/ minute for girls and 5 1 for boys are full marks. In order to get full marks, the most important thing is correct posture, and at the same time pay attention to the cultivation of quick touch mat consciousness.