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

Evidence of decrease in peak heart rate in acute hypoxia: effect of exercise-induced arterial hypoxemia.

O Grataloup1, T Busso, J Castells

  • 1Unité de recherche Physiologie et Physiopathologie de l'Exercice et Handicap, Université J. Monnet, Saint-Etienne, France. olivier.grataloup@gmail.com

International Journal of Sports Medicine
|November 18, 2006
PubMed
Summary

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

Sarcomas developed in patients with Lynch Syndrome are enriched in pleomorphic soft-tissue sarcomas and are sensitive to immunotherapy.

European journal of cancer (Oxford, England : 1990)·2025
Same author

The multifaceted aspects of sleep and sleep-wake disorders following stroke.

Revue neurologique·2023
Same author

[CAR-T cells therapy in solid tumors : where are we now ?]

Revue medicale de Liege·2022
Same author

[Apalutamide, Erleada®].

Revue medicale de Liege·2022
Same author

Impact of drug consumption rooms on non-fatal overdoses, abscesses and emergency department visits in people who inject drugs in France: results from the COSINUS cohort.

International journal of epidemiology·2022
Same author

[Management of metastatic hormone-naive prostate cancer at diagnosis].

Revue medicale de Liege·2021

Endurance athletes experiencing exercise-induced arterial hypoxemia show a greater reduction in peak heart rate during acute hypoxia. Arterial oxygen saturation significantly influences this heart rate decrease in cyclists.

Area of Science:

  • Exercise Physiology
  • Cardiovascular Response
  • Hypoxia Research

Background:

  • Acute moderate hypoxia can affect physiological responses during exercise.
  • Exercise-induced arterial hypoxemia (EIAH) is observed in some endurance athletes.
  • Understanding the relationship between oxygen saturation and heart rate is crucial for performance.

Purpose of the Study:

  • To investigate the influence of arterial oxygen saturation at exhaustion on peak heart rate.
  • To compare responses between cyclists with and without exercise-induced arterial hypoxemia.
  • To determine the impact of acute hypoxia on heart rate and oxygen uptake.

Main Methods:

  • Nineteen male cyclists performed exhaustive ramp exercise under normoxia and normobaric hypoxia.

Related Experiment Videos

  • Subjects were categorized based on the presence of exercise-induced arterial hypoxemia (>5% SaO2 decrease).
  • Measurements included oxygen uptake, heart rate, and arterial oxygen saturation (SaO2).

    • Main Results:

    • Peak heart rate decreased under hypoxia in both groups, with a greater reduction in hypoxemic subjects.
    • Arterial oxygen saturation was lower in hypoxemic subjects during hypoxia.
    • A correlation was found between reduced SaO2 and the fall in peak heart rate.

    Conclusions:

    • Hypoxemic cyclists exhibit a more pronounced decrease in peak heart rate during acute hypoxia.
    • Arterial oxygenation level at exhaustion significantly influences peak heart rate reduction in hypoxia.
    • These findings highlight the impact of EIAH on cardiovascular response to hypoxic exercise.