The word body weight urn is really right but often utilized to explain body fat scales. The scale typically shows the portion of fat in a single body part or all parts of the body at one time. A BMI scale measures the portion of fats in the body mass index, which shows how much of the person's weight is made up of muscles.The step-on body fat scales only determine fat deposits in particular parts basculas de baño antiguas of the body such as abdomen, thighs, and butts.