The single index of body mass index (BMI) in the National Physical Health Standard for Students (revised 20 14) accounts for 15%. The proportion of vital capacity in national students' physical fitness test is 20%.
Body mass index (BMI) = weight (kg)/height 2 (m2).
Body Mass Index (BMI) is the abbreviation of body mass index (BMI), also known as BMI. It is a number obtained by dividing the weight in kilograms by the square of the height in meters, that is, BMI = weight (kg)/ height (m) 2 [1].
The concept of height and body mass index was first put forward by Belgian generalist kettler in the middle of19th century. Body mass index is mainly used for statistical purposes. When we need to compare and analyze the influence of a person's weight on the health of people with different heights, the body mass index is a neutral and reliable index, which is a commonly used international standard to measure the degree of obesity and health status.