Body Mass Index (in English) is a number obtained by dividing the weight in kilograms by the square of the height in meters, and it is a commonly used international standard to measure the degree of obesity and health. When we need to compare and analyze the influence of a person's weight on the health of people of different heights, the body mass index is a neutral and reliable indicator.
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The connotation of "National Students' Physical Health Standard" is an evaluation standard to measure students' physical health status and exercise effect, a basic requirement of the state for students of different ages, and a personalized evaluation standard for students' physical health.
The concept of health includes physical health, mental health and social adaptation. The National Standards for Students' Physical Health covers the category of students' physical health closely related to school physical education. In order to clarify its connotation and avoid confusion with the three-dimensional concept of health, "constitution" is taken as the attributive of "health" to show its connotation.
The WHO calculation method of height and weight standard is as follows:
Male: (height cm-80)×70%= standard weight, female: (height cm-70)×60%= standard weight.
Standard weight plus or minus 10% is normal weight, standard weight plus or minus 10%~20% is overweight or underweight, and standard weight plus or minus 20% is obese or underweight.
Body mass index method is as follows:
The square of body mass index = weight (kg)/ height (m) is kg/m2.
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