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KIN 142 BODY.docx

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KINS 2295

The criticisms of height-weight tables 1) tables do not consider body composition 2) Most data come from white, middle class US adults age 25-29. Does not represent general North American population 3) No accepted method has been devised to determine frame size. How to measure body volume Under water weighing, volumetry, air-displacement plethymography Density of nonfat compartments varies as function of age sex and racial groups. Conclusion- densitometry should not be used as a universal criterion for prediction of percent fat. Equations on four component models are preferred over equations based on a two component model. BMI(body mass index) and its criticism? Used as an indicator for obesity. Mass (kg)/height(m)^2 Criticism: BMI does not take body composition into account Hip to waist ratio Waist circumference to hip ratio is a better predictor of obesity related health risk than BMI What is rationale? The relationship exists between fat located in the depots directly under the skin and internal body fat and body density. Two ways to use fat folds 1.) Use sum of number of skinfolds as an indication of relative fatness among indivuals 2.) Use fatfolds in conjuction with equations or tables to predict percent body fat What are the assumptions in
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