Evidence map›Paper›PMID 34305657›Full record

ReviewFrontiers in physiology2021

Going to Extremes of Lung Physiology-Deep Breath-Hold Diving.

Kay Tetzlaff, Frederic Lemaitre, Christof Burgstahler, Julian A Luetkens, Lars Eichhorn

Open access · goldAbstract readReview
In one paragraph

Review in Frontiers in physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

10 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Advances in breath-hold diving research: a state-of-the-art review.European journal of applied physiology · 2026
    Review
  3. Review
  4. Respiratory anatomy and physiology in diving penguins.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  5. Article
  6. Article
  7. Skill building in freediving as an example of embodied culture.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Article
  8. Review
  9. Review
  10. 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

5 authors at 3 institutions in 2 countries.

Kay TetzlaffDepartment of Sports Medicine, University Hospital of Tübingen, Tübingen, Germany.
Frederic LemaitreFaculte des Sciences du Sport et de l'Education Physique, Universite de Rouen, Rouen, France.
Christof BurgstahlerDepartment of Sports Medicine, University Hospital of Tübingen, Tübingen, Germany.
Julian A LuetkensDepartment of Radiology, University Hospital Bonn, Bonn, Germany.
Lars EichhornDepartment of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany.
University Children's Hospital Tübingen · DEUniversity Hospital Bonn · DEUniversité de Rouen Normandie · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Breath-hold diving involves environmental challenges, such as water immersion, hydrostatic pressure, and asphyxia, that put the respiratory system under stress. While training and inherent individual factors may increase tolerance to these challenges, the limits of human respiratory physiology will be reached quickly during deep breath-hold dives. Nonetheless, world records in deep breath-hold diving of more than 214 m of seawater have considerably exceeded predictions from human physiology. Investigations of elite breath-hold divers and their achievements revised our understanding of possible physiological adaptations in humans and revealed techniques such as glossopharyngeal breathing as being essential to achieve extremes in breath-hold diving performance. These techniques allow elite athletes to increase total lung capacity and minimize residual volume, thereby reducing thoracic squeeze. However, the inability of human lungs to collapse early during descent enables respiratory gas exchange to continue at greater depths, forcing nitrogen (N

Indexed as

apneabreath-hold divingdecompressionglossopharyngeal insufflationlungnarcosis

Identifiers

PMID34305657
PMCPMC8299524
OpenAlexW3181341097

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.