Waist circumference (w0): measured at the thinnest part of the waist. Refers to the horizontal girth (om) of the waist through the umbilical point. The measurement method is: the subjects stand with their feet 25 to 30 cm apart and their weight is evenly distributed.

2. Hip circumference (H0): Measure the most plump part of the hip. When measuring, stand upright with your legs together and your arms droop naturally. Place the tape horizontally at the front of pubic symphysis and the most prominent part of gluteus maximus.

3. Leg circumference: The subjects' legs are shoulder width apart, and the legs bear the weight on average. The measurer puts the tape measure behind the hip and measures the circumference of the thigh horizontally, which is the thigh circumference.

The standard measurement method for women: bust = height (cm) ×0.535, waist = height (cm) ×0.365, hip = height (cm) ×0.565.

The actual calculated index and the standard index of 3 cm are standard. Less than 5 cm means too slim (thin); More than 5 cm indicates that it is too plump (overweight).