BPK 140 Chapter Notes - Chapter 8: Body Mass Index, Ct Scan, Hydrostatic Weighing
8 Sep 2017
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Weight where risk of disease and premature death are increased. Overfat: body fat % is higher than normal. Possible to be overfat without being overweight (ex. Ideal weight: weight that makes your health risks lowest or culturally ideal weight. It is possible to be overweight without being overfat (ex. Life insurance company use this because longevity is related to body weight. Problem: does not consider differences in body composition. Waist girth (more practical because it"s difficult to measure hip) Classifications for ideal weight based on epidemiological data. Uses self-reported height and weight, which are on average lower than that calculated by measured data. Submerge person in water then measure how much volume of water was displaced. Measure resistance to flow of a mild electrical current through body. People conducts electricity poorly is inferred to have higher percentage of body fat. 2 x-ray beams of different energy at patient"s body.
