Evaluation of Body Composition in Overweight and Obese Subjects: Three-Compartment and Ultrasound Comparisons

Evaluation of Body Composition in Overweight and Obese Subjects: Three-Compartment and Ultrasound Comparisons Public Deposited

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Fultz, Sarah Nicole
- Affiliation: College of Arts and Sciences, Department of Exercise and Sport Science

Abstract

Identifying valid field methods to measure body composition in overweight and obese individuals is essential for quantifying percent body fat (%BF), fat mass (FM) and fat free mass (FFM) and the associated concomitant health consequences. The purpose of this study was to compare the validity and reliability of an A-mode ultrasound (US) to the criterion three compartment model (3C) for the measurement of body composition in overweight and obese subjects. Body composition testing was performed on forty-seven overweight and obese subjects via the ultrasound, air displacement plethysmography and bioelectrical impedance spectroscopy, on two separate days. The US was not found to be a valid measurement of body composition in overweight or obese individuals; %BF and FM was significantly under-predicted, while FFM was over-predicted when compared to the criterion 3C model. The US was found to be reliable when compared to 3C for measuring %BF

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