Evidence map›Paper›PMID 34566688›Full record

ArticleFrontiers in physiology2021

Effect of Apnea-Induced Hypoxia on Cardiovascular Adaptation and Circulating Biomarkers of Oxidative Stress in Elite Breath-Hold Divers.

Magdalena Solich-Talanda, Aleksandra Żebrowska, Rafał Mikołajczyk, Sabina Kostorz-Nosal, Dariusz Ziora, Dariusz Jastrzębski, Piotr Siermontowski

Open access · goldAbstract read
In one paragraph

Article 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 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.3field-weighted citation impact, top 39% 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

4 citing papers in PubMed, 4 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. Oxy-Inflammation in Humans during Underwater Activities.International journal of molecular sciences · 2024
    Review
  4. 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 at 3 institutions in 1 country.

Magdalena Solich-TalandaDepartment of Physiological and Medical Sciences, Academy of Physical Education, Katowice, Poland.
Aleksandra ŻebrowskaInstitute of Sport Sciences, Academy of Physical Education, Katowice, Poland.
Rafał MikołajczykDepartment of Physiological and Medical Sciences, Academy of Physical Education, Katowice, Poland.
Sabina Kostorz-NosalDepartment of Lung Diseases and Tuberculosis, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Zabrze, Poland.
Dariusz ZioraDepartment of Lung Diseases and Tuberculosis, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Zabrze, Poland.
Dariusz JastrzębskiDepartment of Lung Diseases and Tuberculosis, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, Zabrze, Poland.
Piotr SiermontowskiDepartment of Underwater Works Technology, Polish Naval Academy, Gdynia, Poland.
Medical University of Silesia · PLInstytut Sportu · PLPolish Naval Academy · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Given the previous evidence that breath-hold diving is a cause of physiological stress, this study aimed to determine whether a combination static and dynamic apnea would affect total oxidant status, nitric oxide, heat shock proteins and cardiovascular parameters in elite freedivers. Thirteen finalists of the World and European championships in swimming pool breath-hold diving participated in the study. Whole-body plethysmography and electrocardiography was performed to determine the cardiorespiratory variables at baseline and during the simulation static apnea. An assessment of the heart rate, blood oxygen saturation and biochemical variables was performed before and in response to a combination of a static followed by a dynamic apnea. Static and dynamic breath-holding had a significant effect on oxidative stress, as evidenced by an increase in the total oxidant status/capacity (

Indexed as

cardiac function analysisfreedivingheat shock (stress) proteinshypoxiaoxidative stress

Identifiers

PMID34566688
PMCPMC8458773
OpenAlexW3200914060

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.