Evidence map›Paper›PMID 33791844›Full record

ReviewEuropean journal of applied physiology2021

Physiology, pathophysiology and (mal)adaptations to chronic apnoeic training: a state-of-the-art review.

Antonis Elia, M Gennser, P S Harlow, Matthew J Lees

Open access · hybridAbstract readReview
In one paragraph

Review in European journal of applied physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
6.8field-weighted citation impact, top 2% 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

31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 56 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Advances in breath-hold diving research: a state-of-the-art review.European journal of applied physiology · 2026
    Review
  11. Review
  12. Review
  13. Trends in competitive freediving accidents.Diving and hyperbaric medicine · 2024
    Article
  14. Review
  15. A dive into the physiological responses to maximal apneas, OEuropean journal of applied physiology · 2024
    Article
  16. Article
  17. Skill building in freediving as an example of embodied culture.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Article
  18. Effects of hyperventilation on repeated breath-holding while in a fasting state: do risks outweigh the benefits?American journal of physiology. Regulatory, integrative and comparative physiology · 2024
    Article
  19. Review
  20. 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

4 authors at 3 institutions in 3 countries.

Antonis EliaDivision of Environmental Physiology, School of Chemistry, Bioengineering and Health, KTH Royal Institute of Technology, Berzelius väg 13, Solna, SE-171 65, Stockholm, Sweden. antonise@kth.se.ORCID http://orcid.org/0000-0002-5991-0733
M GennserDivision of Environmental Physiology, School of Chemistry, Bioengineering and Health, KTH Royal Institute of Technology, Berzelius väg 13, Solna, SE-171 65, Stockholm, Sweden.
P S HarlowSchool of Life Sciences, University of Nottingham, University Park, Nottingham, UK.
Matthew J LeesDepartment of Physical Education and Sport Sciences, Faculty of Education and Health Sciences, University of Limerick, Limerick, Ireland.ORCID http://orcid.org/0000-0003-1422-0154
KTH Royal Institute of Technology · SEUniversity of Limerick · IEUniversity of Nottingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Breath-hold diving is an activity that humans have engaged in since antiquity to forage for resources, provide sustenance and to support military campaigns. In modern times, breath-hold diving continues to gain popularity and recognition as both a competitive and recreational sport. The continued progression of world records is somewhat remarkable, particularly given the extreme hypoxaemic and hypercapnic conditions, and hydrostatic pressures these athletes endure. However, there is abundant literature to suggest a large inter-individual variation in the apnoeic capabilities that is thus far not fully understood. In this review, we explore developments in apnoea physiology and delineate the traits and mechanisms that potentially underpin this variation. In addition, we sought to highlight the physiological (mal)adaptations associated with consistent breath-hold training. Breath-hold divers (BHDs) are evidenced to exhibit a more pronounced diving-response than non-divers, while elite BHDs (EBHDs) also display beneficial adaptations in both blood and skeletal muscle. Importantly, these physiological characteristics are documented to be primarily influenced by training-induced stimuli. BHDs are exposed to unique physiological and environmental stressors, and as such possess an ability to withstand acute cerebrovascular and neuronal strains. Whether these characteristics are also a result of training-induced adaptations or genetic predisposition is less certain. Although the long-term effects of regular breath-hold diving activity are yet to be holistically established, preliminary evidence has posed considerations for cognitive, neurological, renal and bone health in BHDs. These areas should be explored further in longitudinal studies to more confidently ascertain the long-term health implications of extreme breath-holding activity.

Indexed as

Adaptation, PhysiologicalBreath HoldingPhysical Education and TrainingApneaCardiovascular Physiological PhenomenaDivingHumansRespiratory Physiological PhenomenaApnoeaBone healthBreath-hold divingHaematologySkeletal muscleSpleen

Identifiers

PMID33791844
PMCPMC8144079
OpenAlexW3148386974

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.