Body mass index (BMI) is a body mass index, which is a simple index showing the relationship between weight and height, and also an international objective index to measure the obesity of ordinary adults. For people in China, the health standard of body mass index is between 18.5-22.9, less than 18.5 means underweight, 23-24.9 means overweight, 25-29.9 means mild obesity, and over 30 means severe obesity.
It is worth noting that the body mass index (BMI) cannot determine the ratio of muscle to fat in human body weight, so the BMI may not accurately reflect the obesity degree of some adults, such as athletes (with more muscles) or the elderly (with less muscles). In addition, children and adolescents are in the stage of growth and development, and their weight and height change greatly, so the standard of measuring obesity is different from that of adults.
Matters needing attention in the calculation of body mass index
1. Some bodybuilders may be overweight due to high muscle content, but this does not mean obesity.
2, don't just look at the value of bmi, but also pay attention to the waist circumference, which is another medical indicator to judge obesity.
3. A body mass index greater than or equal to 24 is overweight, and a body mass index greater than or equal to 28 is obese; Male waist circumference is greater than or equal to 85 cm, and female waist circumference is greater than or equal to 80 cm.
4. Body mass index is suitable for people aged 25-65. However, this measurement method also has its disadvantages. For example, the body mass index does not take into account people's muscle mass and body shape (for example, an apple-shaped body cannot be distinguished from a pear-shaped body).
Body mass index is just a way to measure weight. If you have the conditions to measure skin fold thickness or BIA (bioelectrical impedance analysis), you should try to choose the latter because it is more accurate.
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