Reliability of measurements of energy expenditure and substrate oxidation using whole-room indirect calorimetry.

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 f

SUBMITTER: Allerton TD 

PROVIDER: S-EPMC9178907 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature