Twenty-four-hour energy expenditure and resting metabolic rate in obese, moderately obese, and control subjects.

Details

Serval ID
serval:BIB_CB1F5412F38D
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Twenty-four-hour energy expenditure and resting metabolic rate in obese, moderately obese, and control subjects.
Journal
American Journal of Clinical Nutrition
Author(s)
Ravussin E., Burnand B., Schutz Y., Jéquier E.
ISSN
0002-9165 (Print)
ISSN-L
0002-9165
Publication state
Published
Issued date
1982
Peer-reviewed
Oui
Volume
35
Number
3
Pages
566-573
Language
english
Abstract
Twenty-four-hour energy expenditure (24-EE), resting metabolic rate (RMR) and body composition were determined in 30 subjects from three groups; control (103 +/- 2% ideal body weight, n = 10), moderately obese (129 +/- 1% ideal body weight, n = 6), and obese (170 +/- 5% ideal body weight, n = 14) individuals. Twenty-four EE was measured in a comfortable airtight respiration chamber. When expressed as absolute values, both RMR and 24-EE were significantly increased in obese subjects when compared to normal weight subjects. The RMR was 7592 +/- 351 kJ/day in the obese, 6652 +/- 242 kJ/day in the moderately obese, and 6118 +/- 405 kJ/day in the controls. Mean 24-EE values were 10043 +/- 363, 9599 +/- 277, and 8439 +/- 432 kJ/day in the obese, moderately obese, and controls, respectively. The larger energy expenditure in the obese over 24 h was mainly due to a greater VO2 during the daylight hours. However, 92% of the larger 24-EE in the obese, compared to the control group, was accounted for by the higher RMR and only 8% by other factors such as the increased cost of moving the extra weight of the obese. The higher RMR and 24-EE in the obese was best related to the increased fat free mass.
Keywords
Adult, Basal Metabolism, Body Composition, Carbon Dioxide/blood, Circadian Rhythm, Energy Metabolism, Fatty Acids, Nonesterified/blood, Female, Humans, Male, Middle Aged, Obesity/blood, Obesity/metabolism, Sleep/physiology
Pubmed
Web of science
Create date
21/01/2008 13:08
Last modification date
20/08/2019 15:45
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