TITLE:
Body Composition and Energy Expenditure Changes during Weight Loss: An Exploratory Study
AUTHORS:
Adrienne S. Thomas, Jocelyn E. Holden, Jo Carol Chezem
KEYWORDS:
Energy Metabolism; Body Composition; Caloric Restriction; Weight Loss
JOURNAL NAME:
Food and Nutrition Sciences,
Vol.3 No.2,
February
27,
2012
ABSTRACT: The objective of this exploratory study was to describe changes in body composition and resting energy expenditure (REE) in adult women during weight reduction. A total of 69 client records were collected retrospectively from a 25 week commercial weight loss program that restricted calories to 90% of measured REE. Data analyzed included total body mass (TBM), fat mass (FM) and fat-free mass (FFM) from air displacement plethysmography; measured REE from indirect calorimetry; and predicted REE from linear regression. From baseline to week 25, there were significant declines in TBM (95.0 ± 24.1 kg to 87.2 ± 22.9 kg; P