Evidence map›Paper›PMID 34007842›Full record

ArticleERJ open research2021

Energy expenditure and physical activity in COPD by doubly labelled water method and an accelerometer.

Hideaki Sato, Hidetoshi Nakamura, Yuki Nishida, Toru Shirahata, Sanehiro Yogi, Tomoe Akagami, Machika Soma, Kaiji Inoue, Mamoru Niitsu, Tomohiko Mio and 6 more

Abstract read
In one paragraph

Article in ERJ open research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

6 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
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

16 authors.

Hideaki SatoDept of Respiratory Medicine, Saitama Medical University, Saitama, Japan.
Hidetoshi NakamuraDept of Respiratory Medicine, Saitama Medical University, Saitama, Japan.
Yuki NishidaNational Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan.
Toru ShirahataDept of Respiratory Medicine, Saitama Medical University, Saitama, Japan.
Sanehiro YogiDept of Respiratory Medicine, Saitama Medical University, Saitama, Japan.
Tomoe AkagamiDept of Respiratory Medicine, Saitama Medical University, Saitama, Japan.
Machika SomaDept of Respiratory Medicine, Saitama Medical University, Saitama, Japan.
Kaiji InoueDept of Radiology, Saitama Medical University, Saitama, Japan.
Mamoru NiitsuDept of Radiology, Saitama Medical University, Saitama, Japan.
Tomohiko MioDept of Respiratory Medicine, Saitama Medical University, Saitama, Japan.
Tatsuyuki MiyashitaDept of Respiratory Medicine, Saitama Medical University, Saitama, Japan.
Makoto NagataDept of Respiratory Medicine, Saitama Medical University, Saitama, Japan.
Satoshi NakaeNational Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan.
Yosuke YamadaNational Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan.
Shigeho TanakaNational Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan.
Fuminori KatsukawaSports Medicine Research Center, Keio University, Kanagawa, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although weight loss suggests poor prognosis of COPD, only a few studies have examined total energy expenditure (TEE) or physical activity level (PAL) using the doubly labelled water (DLW) method. We evaluated TEE and PAL using the DLW method together with a triaxial accelerometer to elucidate the relationships between TEE, PAL and clinical parameters leading to a practical means of monitoring COPD physical status. This study evaluated 50- to 79-year-old male patients with mild to very severe COPD (n=28) or at risk for COPD (n=8). TEE, activity energy expenditure for 2 weeks and basal metabolic rate were measured by DLW, an accelerometer and indirect calorimetry, respectively. All patients underwent pulmonary function, chest-computed tomography, 6-min walk test, body composition and grip strength tests. Relationships between indices of energy expenditure and clinical parameters were analysed. Bland-Altman analysis was used to examine the agreement of TEE and PAL between the DLW method and the accelerometer. TEE and PAL using DLW in the total population were 2273±445 kcal·day

Identifiers

PMID34007842
PMCPMC8093485

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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.