Evidence map›Paper›PMID 34507310›Full record

ArticleJournal of breath research2021

The physics of human breathing: flow, timing, volume, and pressure parameters for normal, on-demand, and ventilator respiration.

Joachim D Pleil, M Ariel Geer Wallace, Michael D Davis, Christopher M Matty

Open access · greenAbstract readLetter
In one paragraph

Article in Journal of breath research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed, 1 pooled it
9.9field-weighted citation impact, top 1% 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

77 citing papers in PubMed, 1 synthesis or guideline pooled it, 183 citations in OpenAlex.

  1. Ambient Air Pollution Exposure and Breast Cancer Risk Worldwide: A Systematic Review of Longitudinal Studies.International journal of environmental research and public health · 2024
    Pooled it
  2. Trial
  3. Article
  4. The Wells-Riley Model Revisited II: Parameter Uncertainty and Population Heterogeneity.Risk analysis : an official publication of the Society for Risk Analysis · 2026
    Article
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  8. Xenobiotic Hazards in Aircraft Cabin Air.Journal of xenobiotics · 2026
    Article
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17 more citing papers are in PubMed but not listed here.

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

4 authors at 4 institutions in 1 country.

Joachim D PleilGillings School of Public Health, University of North Carolina, Chapel Hill, NC, United States of America.ORCID 0000-0001-8211-0796
M Ariel Geer WallaceOffice of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC, United States of America.ORCID 0000-0002-3966-5101
Michael D DavisHerman B. Wells Center for Pediatrics Research, Indiana University School of Medicine, Indianapolis, IN, United States of America.ORCID 0000-0001-9387-1961
Christopher M MattyJohnson Space Center, National Aeronautics and Space Administration, Houston, TX, United States of America.
Environmental Protection Agency · USIndiana University – Purdue University Indianapolis · USNational Aeronautics and Space Administration · USUniversity of North Carolina at Chapel Hill · US

Funding

Intramural EPA EPA999999
6 · The paper itself

Abstract

Normal breathing for healthy humans is taken for granted; it occurs without conscious effort using ambient (1-atmosphere) pressure with 21% oxygen (O

Indexed as

Breath TestsVentilators, MechanicalHumansMasksPhysicsRespirationCPAPfirefighterjet pilotnasal cannulaon demand maskSCUBAventilator

Identifiers

PMID34507310
PMCPMC8672270
OpenAlexW3197998503

What OpenQuestion holds

Textmetadata
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.