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

Exercise hyperpnea and hyperthermia in humans

M D White1, M Cabanac

  • 1Department of Physiology, Faculty of Medicine, Laval University, Quebec, Canada.

Journal of Applied Physiology (Bethesda, Md. : 1985)
|September 1, 1996
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

Evidence of an activity-enhancing conformational shift in Arabidopsis thaliana plant cysteine oxidase 4 induced by binding of substrate or substrate-mimics.

The Journal of biological chemistry·2025
Same author

A microtubule-organizing center directing intracellular transport in the early mouse embryo.

Science (New York, N.Y.)·2017
Same author

Mouse Embryo Compaction.

Current topics in developmental biology·2016
Same author

Corticotropin Releasing Hormone and Body Weight Regulation: The Behavioral Approach.

Nutritional neuroscience·2016
Same author

Effects of elevated core temperature and normoxic 30% nitrous oxide on human ventilation during short duration, high intensity exercise.

Respiratory physiology & neurobiology·2014
Same author

Alliesthesia in visual and auditory sensations from environmental signals.

Physiology & behavior·2007
Same journal

Thoroughbred horses susceptible to Recurrent Exertional Rhabdomyolysis have elevated skeletal muscle mitochondrial capacities.

Journal of applied physiology (Bethesda, Md. : 1985)·2026
Same journal

Change in Neutrophil-to-Lymphocyte Ratio after acute and chronic exercise: A Systematic Review and Meta-Analysis.

Journal of applied physiology (Bethesda, Md. : 1985)·2026
Same journal

Ankylosing spondylitis and muscle sympathetic nerve activity: a case study.

Journal of applied physiology (Bethesda, Md. : 1985)·2026
Same journal

Intracranial vasomotor and blood flow responses to light intensity aerobic exercise in young adults: a 4D flow MRI study.

Journal of applied physiology (Bethesda, Md. : 1985)·2026
Same journal

Comparative assessments of the COSMED adaptive mixing chamber vs. breath-by-breath methods for oxygen uptake measurements in recreationally active adults.

Journal of applied physiology (Bethesda, Md. : 1985)·2026
Same journal

Can we assess exercise metabolism from skin? Metabolomic profiles in skin dialysate collected during exercise.

Journal of applied physiology (Bethesda, Md. : 1985)·2026
See all related articles

Relative hyperpnea during intense exercise is linked to core body temperatures. This study found that cranial and thoracic temperature differences suggest selective brain cooling in humans during high-intensity exercise.

Area of Science:

  • Exercise Physiology
  • Human Physiology
  • Thermoregulation

Background:

  • Relative hyperpnea, an increase in breathing during exercise, is not fully understood at high intensities.
  • Investigating the relationship between core body temperatures and breathing responses during strenuous physical activity is crucial.

Purpose of the Study:

  • To determine if cranial (tympanic) and thoracic (esophageal) temperatures influence hyperpnea at approximately 70% of maximal exercise capacity.
  • To explore the role of selective brain cooling in regulating ventilation during intense exercise.

Main Methods:

  • Six trained males performed cycle ergometry to exhaustion in a controlled climatic chamber.
  • Work rate was progressively increased (40 W or 20 W every 2 min) until exhaustion.
  • Cranial (tympanic) and thoracic (esophageal) temperatures were monitored alongside ventilation.

Related Experiment Videos

Main Results:

  • Core temperature thresholds for ventilation were observed during exercise.
  • A divergence between tympanic and esophageal temperatures occurred at higher exercise intensities.
  • These findings indicate that core temperatures partially determine hyperpnea at high exercise levels.

Conclusions:

  • Hyperpnea at approximately 70% of maximal work rate is influenced by core body temperatures.
  • The observed temperature divergence provides evidence for selective brain cooling in humans during intense exercise.
  • This study contributes to understanding the physiological mechanisms of respiratory control during maximal exertion.