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
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