Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Diving response and apneic time in humans

E Schagatay1, J Andersson

  • 1Department of Animal Physiology, Lund University, Sweden.

Undersea & Hyperbaric Medicine : Journal of the Undersea and Hyperbaric Medical Society, Inc
|May 5, 1998
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Strengthening incident learning in radiotherapy practice: insights from the MARLIN study.

Clinical and translational radiation oncology·2026
Same author

Digital health competence among healthcare professionals: A cross-sectional cluster analysis across 19 countries and regions.

International journal of nursing studies·2026
Same author

Healthcare professionals' digital health competence and its core factors; development and psychometric testing of two instruments.

International journal of medical informatics·2023
Same author

Formation and relaxation of K<sup>-2</sup> and K<sup>-2</sup>V double-core-hole states in n-butane.

The Journal of chemical physics·2022
Same author

What drives transmission of severe acute respiratory syndrome coronavirus 2?

Journal of internal medicine·2021
Same author

Neonatal pneumothorax: symptoms, signs and timing of onset in the post-surfactant era.

The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·2021

Trained divers exhibit enhanced breath-holding capacity due to the diving response, characterized by heart rate reduction and decreased skin blood flow. This response significantly correlates with longer apneic times and suggests an oxygen-conserving effect in experienced individuals.

Area of Science:

  • Physiology
  • Human Diving Response
  • Breath-hold Diving

Background:

  • The human diving response, involving heart rate (HR) reduction and decreased skin blood flow, is a physiological adaptation to breath-hold diving.
  • Understanding the relationship between the diving response and apneic duration across varying experience levels is crucial for physiological studies.

Purpose of the Study:

  • To compare apneic time with the human diving response (HR reduction and reduced skin blood flow) in groups with different breath-hold diving experience levels.
  • To investigate the influence of face immersion in cold water on apneic time and cardiovascular adjustments.

Main Methods:

  • Recorded apneic time and HR reduction during apneas in air and with face immersion in cold water across nine groups.
  • Measured skin capillary blood flow in six of these groups.

Related Experiment Videos

  • All subjects received standardized instructions for maximizing breath-hold duration.

    • Main Results:

    • Young, trained divers demonstrated the longest apneas and most significant cardiovascular adjustments.
    • Apneic time strongly correlated with HR reduction (r = 0.94) and skin capillary blood flow reduction (r = 0.82).
    • While all groups showed greater HR reduction with face immersion, only experienced divers prolonged their apneic time under this condition.

    Conclusions:

    • The diving response is significantly correlated with increased apneic time in trained divers.
    • Face immersion prolongs apneic time in experienced divers, suggesting an oxygen-conserving effect.
    • The study highlights the adaptive physiological mechanisms underlying enhanced breath-hold capabilities in trained individuals.