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| nhlbi, siemans, site y, calorie counter, lose fat, albert einstein, tanita 680, conclusion, dietary nutrients, reebok, laser jet, measuring tape, waste size, dtc, rabbits, fat tester, digital, study, | Most of the field methods of body composition assessment are based upon the criterion methods used in a clinical setting. These criterion methods are densitometry (underwater weighing), hydrometry (total body water), and potassium spectroscopy. Statistics (regression analysis) is used to develop an equation supplementation for calculation of % FM (and % supplementation FFM) from field methods that are based upon the results of the criterion methods. It supplementation is important to understand the principles behind some of these measurement techniques and the general assumptions that they are based upon. Of the criterion methods, densitometry (currently the gold standard) is the most widely used method of body composition measurement. This method is used to determine the density of the body by measuring the total volume of fluid that is displaced by the body. |
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| Michael Darnley, RD The term, "body composition" refers to the constituents that provide for structure, movement, and metabolic functions within the body. Body fat is one component of rabbits body composition and is often expressed as a percentage of total body weight. Body composition can not be measured directly in rabbits living humans. Thus, all methods of body composition measurement are only estimations, and these estimations are only as valid as the techniques that have been developed for this rabbits purpose. There are some common misconceptions regarding the application and measurement of body fat. In this article I will discuss several methods of measuring body composition and the relationship of body fat to performance. 2-Compartment and 4-Compartment Models Methods of measuring body composition either use a 2-compartment model in which the body is divided into fat mass (FM) and fat-free mass (FFM), or a 4-compartment model, in which the FFM is further divided into water, protein, and bone mineral. |
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