NTDT310 Study Guide - Midterm Guide: Anabolic Steroid, Underweight, Dietary Supplement
11 Jan 2017
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Four major body components: body water, total body fat, fat free mass, bone mineral. Total body fat: essential fat: function of brain, nerve tissue, bone marrow, heart tissue, cell membrane. Males = 3% females = 12-15: storage fat: deposits for excess energy storage. Fat free mass: protein and water, lean body mass/lean muscle mass, technically includes essential fat. Bone mineral-structure: 50% water, 50% protein and minerals, total bone weight, including protein and water, may constitute 12- Body water: compartments: intracellular, intercellular, extracellular, normal water levels. 60% body weight in an avg weight female. 50% body weight in an avg weight male: fat free mass and body fat. Direct body composition measures: chemical extraction of all fat from body tissues. Indirect analysis of body fat: all techniques we can use on humans, subject to measurement error, underwater weighing. Ncaa wrestler approved: air displacement plethysmography (apd) Advantages over underwater weighing: skinfolds technique.
