Evidence map›Paper›PMID 34355521›Full record

ArticleObesity (Silver Spring, Md.)2021

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

Timothy D Allerton, Elvis A Carnero, Christopher Bock, Karen D Corbin, Pierre-Philippe Luyet, Steven R Smith, Eric Ravussin

Open access · greenAbstract read
In one paragraph

Article in Obesity (Silver Spring, Md.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 28% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Pooled it
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  5. Review
  6. Article
  7. Effects of Glucagon-Like Peptide-1 Receptor Agonists (Mono and Combination Therapy) on Energy Expenditure: A Scoping Review.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Timothy D AllertonPennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
Elvis A CarneroAdventHealth Translational Research Institute, Orlando, Florida, USA.
Christopher BockAdventHealth Translational Research Institute, Orlando, Florida, USA.
Karen D CorbinAdventHealth Translational Research Institute, Orlando, Florida, USA.
Pierre-Philippe LuyetR&D Clinical Sciences & Operations, Sanofi, Frankfurt, Germany.
Steven R SmithAdventHealth Translational Research Institute, Orlando, Florida, USA.
Eric RavussinPennington Biomedical Research Center, Baton Rouge, Louisiana, USA.ORCID 0000-0003-2129-547X
Translational Research Institute for Metabolism and Diabetes · USPennington Biomedical Research Center · USSanofi (Germany) · DE

Funding

Research BaseP30DK072476 · NIDDK · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI Peter Todd Katzmarzyk · 2005 to 2026
$26.5M
NIDDK NIH HHS P30 DK072476
6 · The paper itself

Abstract

objectiveThis 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.

methodsThe 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.

resultsThere 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.

conclusionsThe reliability of the daily components of EE is very high both prior to and after a weight-loss intervention. We here provide instrumental data for investigators to adequately power studies investigating energy metabolism using whole-room indirect calorimetry.

Indexed as

Energy MetabolismSleepCalorimetryCalorimetry, IndirectHumansOxidation-ReductionReproducibility of Results

Identifiers

PMID34355521
PMCPMC9178907
OpenAlexW3189358829

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.