Body composition is the proportion of fat, muscle, and bone in the body. There are many methods to know someone’s body composition and body fat percentage such as measurement with calipers, underwater body, fat test, the bodpod, DEXA scan and bioelectrical impedance analysis. (Kravitz, Len, Ph.D. & H. Heyward, Vivian, Ph.D.). The calipers method involves measuring the skinfold thickness of the layer of fat just under the skin in several parts of the body with calipers. The results are then calculated and the percentage of body fat is determined. Underwater weighing is a method that determines body fat to lean mass that makes up a person's total body density using Archimedes' Principle of displacement. A Bod Pod is a device that is used to measure a person's mass and volume, from which their body density is determined. DEXA scan is a bone density test that determined whether or not you have osteoporosis. This is a test that uses dual x-rays with different energy levels to measure the grams of calcium and other bone minerals packed into a given bone segment. bioelectrical impedance analysis is a method for estimating body composition. It measures how much of your body weight is fat and how much is nonfat (bone, muscle, body water, organs, and other body tissues). (Wikipedia). The total amount of body fat consists of essential fat and storage fat. The essential fat is the fat in the marrow of bones, in the heart, lungs, liver, spleen, kidneys, intestines and muscles. Essential fat is necessary for the body to function. The essential fat of women is higher than that of men. The fat that accumulates in adipose tissue is called storage fat. Storage fat is located around internal organs and beneath the skin. The body requires essential fat because it is an important metabolic fuel for energy production. “The percentage of essential body fat for women is greater than that for men, due to the demands of childbearing and other hormonal functions”...
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