Evidence map›Paper›PMID 26388199›Full record

ArticleRespiratory physiology & neurobiology2016

Quantifying the shape of maximal expiratory flow-volume curves in healthy humans and asthmatic patients.

Paolo B Dominelli, Yannick Molgat-Seon, Glen E Foster, Giulio S Dominelli, Hans C Haverkamp, William R Henderson, A William Sheel

Abstract read
In one paragraph

Article in Respiratory physiology & neurobiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–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

9 citing papers in PubMed.

  1. Trial
  2. Article
  3. Observational
  4. Article
  5. Article
  6. Sex, gender and the pulmonary physiology of exercise.European respiratory review : an official journal of the European Respiratory Society · 2022
    Review
  7. Article
  8. Analysis of maximal expiratory flow-volume curves in adult survivors of preterm birth.American journal of physiology. Regulatory, integrative and comparative physiology · 2019
    Article
  9. 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

7 authors.

Paolo B DominelliSchool of Kinesiology, University of British Columbia, Vancouver, BC, Canada. Electronic address: p.dominelli@alumni.ubc.ca.
Yannick Molgat-SeonSchool of Kinesiology, University of British Columbia, Vancouver, BC, Canada.
Glen E FosterCentre for Heart, Lung, and Vascular Health, School of Health and Exercise Sciences, University of British Columbia, Kelowna, BC, Canada.
Giulio S DominelliUniversity of British Columbia Division of Respiratory Medicine, Kelowna General Hospital, Kelowna, BC, Canada.
Hans C HaverkampDepartment of Environmental & Health Sciences, Johnson State College, Johnson, VT, United States.
William R HendersonSchool of Kinesiology, University of British Columbia, Vancouver, BC, Canada.
A William SheelSchool of Kinesiology, University of British Columbia, Vancouver, BC, Canada.

Funding

Vermont INBRE Administrative Supplement 2024 AWD 118P20GM103449 · NIGMS · UNIVERSITY OF VERMONT & ST AGRIC COLLEGE · PI CHRISTOPHER S FRANCKLYN · 2012 to 2026
$58.4M
Canadian Institutes of Health ResearchNIGMS NIH HHS 8P20GM103449NIGMS NIH HHS P20 GM103449
6 · The paper itself

Abstract

Differences in the absolute flow and volume of maximal expiratory flow-volume (MEFV) curves have been studied extensively in health and disease. However, the shapes of MEFV curves have received less attention. We questioned if the MEFV curve shape was associated with (i) expiratory flow limitation (EFL) in health and (ii) changes in bronchial caliber in asthmatics. Using the slope-ratio (SR) index, we quantified MEFV curve shape in 84 healthy subjects and 8 matched asthmatics. Healthy subjects performed a maximal exercise test to assess EFL. Those with EFL during had a greater SR (1.15 ± 0.20 vs. 0.85 ± 0.20, p<0.05) yet, there was no association between maximal oxygen consumption and SR (r=0.14, p>0.05). Asthmatics average SR was greater than the healthy subjects (1.35 ± 0.03 vs. 0.90 ± 0.11, p<0.05), but there were no differences when bronchial caliber was manipulated. In conclusion, a greater SR is related to EFL and this metric could aid in discriminating between groups known to differ in the absolute size of MEFV curves.

Indexed as

AdultAsthmaCardiovascular AgentsExerciseExercise TestFemaleHeliumHumansMaleMaximal Expiratory Flow-Volume CurvesOxygenRetrospective StudiesSpirometryCardiovascular AgentshelioxHeliumOxygenExpiratory flow limitationPulmonary system limitationVentilator constraints

Identifiers

PMID26388199
PMCPMC6238952

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.