Measure the data of the following two places with sebum thickness gauge, and substitute these measured data (it is recommended to measure each measuring part for 2~3 times, and then calculate the average value) into the formula, and you can get a relatively accurate body fat rate.
2. Calculation formula:
(1) For the method of calculating body density according to the thickness of subcutaneous fat, we temporarily quote the formula for calculating body density of Japanese teenagers for your reference.
X= back sebum+upper arm sebum (mm)
(2) Calculation of body fat percentage
The data obtained by calculating body fat percentage and fat-free weight with the following formula are more reliable.