Document Detail

Greater than predicted decrease in resting energy expenditure and weight loss: Results from a systematic review.
MedLine Citation:
PMID:  22327054     Owner:  NLM     Status:  Publisher    
Changes in resting EE (energy expenditure) during weight loss are said to be greater than what can be expected from changes of body mass, i.e. fat mass (FM) and fat-free mass (FFM) but controversy persists. The primary focus of this study was to investigate whether there is a greater than predicted decrease in resting EE during weight loss in a large sample size through a systematic review. The study data were weighted and a partial residual plot followed by a multiple regression analysis was performed to determine whether FM and FFM can predict the changes of resting EE after weight loss. Another subgroup of studies from which all necessary information was available was analyzed and compared against the Harris-Benedict prediction equation to determine whether the changes in resting EE were greater than what was expected. Subjects lost 9.4 ± 5.5 kg (p < 0.01) with a mean resting EE decline of 126.4 ± 78.1 kcal/d (p < 0.01). Changes in FM and FFM explained 76.5% and 79.3% of the variance seen in absolute resting EE at baseline and post-weight loss respectively (p < 0.01). Analysis of the 1450 subject subgroup indicated an approximately 29.1% greater than predicted decrease in resting EE when compared to the Harris-Benedict prediction equation (p < 0.01). This analysis does not support the notion of a greater than predicted decrease in resting EE after weight loss.
Alexander Schwartz; Jennifer L Kuk; Gilles Lamothe; Eric Doucet
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-13
Journal Detail:
Title:  Obesity (Silver Spring, Md.)     Volume:  -     ISSN:  1930-7381     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101264860     Medline TA:  Obesity (Silver Spring)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
School of Human Kinetics, University of Ottawa, Ontario, Canada K1N 6N5.
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