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

Cardiorespiratory and metabolic adaptations to hyperoxic training

L L Ploutz-Snyder1, J A Simoneau, R M Gilders

  • 1Department of Biological Sciences, Ohio University, Athens, Ohio 45701, USA.

European Journal of Applied Physiology and Occupational Physiology
|January 1, 1996
PubMed
Summary

Hyperoxic training improved cardiorespiratory and metabolic responses, enhancing maximal aerobic power and altering muscle fiber composition. Both hyperoxic and normoxic training induced similar adaptations, suggesting transport mechanisms may limit aerobic power gains.

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

Sports Sciences Research: Olympic Opportunity.

The Physician and sportsmedicine·2017
Same author

Physiological Profiles of Elite Rowers.

The Physician and sportsmedicine·2017
Same author

Effects of a Long-Term Fitness Program on Professional Baseball Players.

The Physician and sportsmedicine·2016
Same author

Unilateral lower limb suspension: integrative physiological knowledge from the past 20 years (1991-2011).

European journal of applied physiology·2011
Same author

Short-term exercise training improves aerobic capacity with no change in arterial function in obesity.

European journal of applied physiology·2009
Same author

Regional differences in abdominal fat loss.

International journal of obesity (2005)·2006

Area of Science:

  • Exercise Physiology
  • Sports Science
  • Cardiorespiratory Fitness

Background:

  • Hyperoxic training involves breathing enriched oxygen mixtures during exercise.
  • Understanding its effects on cardiorespiratory and metabolic adaptations is crucial for optimizing training protocols.
  • Previous research has yielded mixed results regarding the specific benefits of hyperoxic training.

Purpose of the Study:

  • To investigate the specific cardiorespiratory and metabolic effects of 5-week hyperoxic training compared to normoxic training.
  • To analyze changes in cardiac output, stroke volume, heart rate, ventilation, oxygen consumption, lactate levels, and muscle fiber type.
  • To determine if hyperoxic training offers distinct advantages over normoxic training.

Main Methods:

  • 19 male subjects underwent 5 weeks of cycle ergometer training at 70% of maximal heart rate.

Related Experiment Videos

  • The hyperoxic group (HG) breathed 70% O2, while the normoxic group (NG) breathed 21% O2.
  • Pre- and post-training tests measured cardiorespiratory, metabolic, and muscle fiber responses under both hyperoxic and normoxic conditions.

    • Main Results:

    • Maximal oxygen consumption increased significantly in both groups, with slightly higher values during hyperoxia.
    • Maximal heart rate decreased post-training, while stroke volume and maximal cardiac output increased.
    • Hyperoxic training showed lower blood lactate levels after a single session and differences in muscle fiber composition and mitochondrial enzyme activity compared to normoxic training.

    Conclusions:

    • Both hyperoxic and normoxic training induce significant adaptive responses in maximal aerobic power, heart rate, stroke volume, cardiac output, lactate levels, and muscle fiber type.
    • Intramuscular data, mitochondrial enzyme findings, and lactate responses suggest potential differences between hyperoxic and normoxic training.
    • The study suggests that oxygen transport mechanisms may be a limiting factor in enhancing aerobic power.