The waistband is mainly used to protect the waist tissue and prevent sports injuries. Originally, training movements are usually safe and effective, but they vary from person to person, and some people have irregular movements during training. For example, a simple weight-bearing squat, if the waist is not straight and the movement is not standardized, will cause serious or even irreversible damage to the waist. At this time, it is necessary to protect the waist to help fix the movement and reduce the training injury.
Physical examination is a unified evaluation model to evaluate the physical quality of junior high school graduates through unified tests, that is, to evaluate the physical quality by measuring sports performance and measuring the current height, vital capacity and weight. The physical education entrance examination time is generally from March to May every year, and the time varies from place to place. Examination results affect students' promotion to high school.