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

Thermoregulation in hyperhydrated men during physical exercise.

R Grucza1, M Szczypaczewska, S Kozłowski

  • 1Department of Applied Physiology, Polish Academy of Sciences, Warsaw.

European Journal of Applied Physiology and Occupational Physiology
|January 1, 1987
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

The frequency of snowline-region planets from four-years of OGLE-MOA-Wise second-generation microlensing.

Monthly notices of the Royal Astronomical Society·2020
Same author

Extremely metal-poor stars from the cosmic dawn in the bulge of the Milky Way.

Nature·2015
Same author

Exoplanet detection. A terrestrial planet in a ~1-AU orbit around one member of a ~15-AU binary.

Science (New York, N.Y.)·2014
Same author

An eclipsing-binary distance to the Large Magellanic Cloud accurate to two per cent.

Nature·2013
Same author

Successful isolated intestinal transplantation in sensitized recipients with the use of virtual crossmatching.

American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons·2012
Same author

ADH1B is associated with alcohol dependence and alcohol consumption in populations of European and African ancestry.

Molecular psychiatry·2011

Hyperhydration improves thermoregulation during exercise. Pre-exercise water intake reduces body weight loss and rectal temperature increase by enhancing sweat efficiency and onset.

Area of Science:

  • Exercise Physiology
  • Human Thermoregulation
  • Sports Science

Background:

  • Thermoregulatory function is crucial during physical exertion.
  • Hydration status significantly impacts physiological responses to exercise.
  • Understanding hyperhydration's effects can optimize athletic performance and safety.

Purpose of the Study:

  • To investigate the influence of hyperhydration on thermoregulatory responses during cycle exercise.
  • To quantify changes in body weight loss, sweat rate, and core body temperature.
  • To assess the impact of hyperhydration on sweating efficiency.

Main Methods:

  • Eight male volunteers performed 45-minute cycle exercise at 52% VO2max in a thermoneutral environment.
  • Subjects underwent a control (euhydrated) condition and a hyperhydrated condition (35 ml/kg body weight).

Related Experiment Videos

  • Measurements included body weight changes, sweat loss, onset of sweating, rectal temperature, and sweating efficiency.

    • Main Results:

    • Hyperhydration significantly reduced total body weight loss (329g vs 442g) and dripped sweat (58g vs 157g).
    • The delay in the onset of sweating was shortened (3.7 min vs 5.8 min) with hyperhydration.
    • Rectal temperature increase was attenuated (0.60°C vs 0.80°C), and sweating efficiency improved (81.4% vs 57.1%).

    Conclusions:

    • Hyperhydration positively influences thermoregulatory function in exercising men.
    • It leads to a reduced delay in sweating onset and decreased sweat volume.
    • These effects result in lower core body temperature increases during exercise.