1. The World Health Organization waist circumference (WC) standard measures the horizontal circumference (om) of the waist passing through the navel point, which is a comprehensive index reflecting the total amount and distribution of fat. The measurement method recommended by the World Health Organization is that the subjects stand with their feet 25 to 30 cm apart, their feet are evenly distributed, and the horizontal circumference passes through the navel point.
2. According to WHO standards, a better but more practical method. Measure with an inelastic soft ruler with a minimum scale of 5 mm (0.5 cm) on an empty stomach, take off the clothes covered by the waist, stand with your hands hanging down naturally, with your feet 30 ~ 40 cm apart, so as to evenly distribute your weight, relax your abdomen and breathe naturally. Place the soft ruler at the navel point (om) and circle the abdomen horizontally, close to the skin without pressing, and exhale normally.
3. Subject to the position of the belt, the error value of this measurement method is extremely large, especially for men with big bellies, some people will tie their pants on the edge of the lower abdomen to avoid discomfort when tightening their stomachs, while others are used to simply pulling their pants up to the edge of the upper abdomen, which increases the error. The latest standard is to take the navel as the horizontal measuring point, but the actual operation process is complicated.
4. The common way to buy clothes is to take off the clothes that cover your waist, stand up easily, and put the tape measure on the upper edge of the hip bone (don't tell me I don't know where the hip bone is) and the lower edge of the rib (don't tell me where the rib is). The midpoint of the line is parallel to the ground and goes around the abdomen, close to the skin without squeezing, and the waist length at the end of normal exhalation is measured.
Precautions:
1, the waist circumference of men is more than 90 cm, and that of women is more than 80 cm, which means abdominal obesity.
2. Waist circumference conversion formula, namely 1 foot = 10 inch = 0.33m = 33.33cm..