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Reliability of Measurements of Energy Expenditure and Substrate Oxidation Using Whole‐room Indirect Calorimetry by Timothy D. Allerton; Elvis A. Carnero; Christopher Bock; Karen D. Corbin; Pierre‐Philippe Luyet; Steven R. Smith; Eric Ravussin is a Medicine article available to read on EtoBox.
What is Reliability of Measurements of Energy Expenditure and Substrate Oxidation Using Whole‐room Indirect Calorimetry about?
## Abstract ## Objective This analysis aimed to measure the intraparticipant reliability—the intraclass correlation coefficient—of all the components of daily energy expenditure (EE) (24‐hour EE, sleep EE, resting EE, basal EE, and thermic effect of food) over a period of 3 consecutive days in 35 study participants. ## Methods The components of daily EE and substrate use (respiratory exchange ratio) were measured over 3 consecutive days before and after a 3‐week 1,000‐kcal/d caloric restriction/weight‐loss intervention. ## Results There was a high degree of reliability for sleep EE (96.8%), 24‐hour EE (97.8%), basal EE (90.6%), and resting EE (93.2%) during the run‐in period. The intraclass correlation coefficient for the follow‐up period after weight loss (3.67 ± 1.10 kg) remained high for sleep EE (95.6%), 24‐hour EE (100%), basal EE (96.1%), and resting EE (92.5%). The minimal detectable differences in EE were reduced by 30% for both 24‐hour EE and sleep EE when comparing 2 days versus 1 day spent in the whole‐room indirect calorimeter. ## Conclusions The reliability of the daily components of EE is very high both prior to and after a weight‐loss intervention. We here provide in
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- Author
- Timothy D. Allerton; Elvis A. Carnero; Christopher Bock; Karen D. Corbin; Pierre‐Philippe Luyet; Steven R. Smith; Eric Ravussin
- Publisher
- Wiley
- Published
- 2021
- Language
- EN
- Field
- Medicine (Health Sciences)