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

Water and electrolyte requirements for exercise.

W A Latzka1, S J Montain

  • 1Thermal and Mountain Medicine Division, US Army Research Institute of Environmental Medicine, Natick, Massachusetts, USA. wlatzka@natick-ccmail.army.mil

Clinics in Sports Medicine
|July 20, 1999
PubMed
Summary

Proper hydration is key for exercise performance, especially in heat. Drink fluids before and during exercise to prevent dehydration and maintain endurance, using water for shorter workouts and carbohydrate-electrolyte drinks for longer ones.

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

Stress fracture risk factors in basic combat training.

International journal of sports medicine·2012
Same author

Expanded prediction equations of human sweat loss and water needs.

Journal of applied physiology (Bethesda, Md. : 1985)·2009
Same author

Effects of intensified military field training on jumping performance.

International journal of sports medicine·2007
Same author

National athletic trainers' association position statement: fluid replacement for athletes.

Journal of athletic training·2006
Same author

Exercise associated hyponatraemia: quantitative analysis to understand the aetiology.

British journal of sports medicine·2006
Same author

Hyponatremia associated with exercise: risk factors and pathogenesis.

Exercise and sport sciences reviews·2001

Area of Science:

  • Sports Medicine
  • Exercise Physiology
  • Environmental Physiology

Background:

  • Dehydration significantly impairs exercise performance, particularly in hot environments.
  • Maintaining adequate hydration is crucial for athletes to optimize physical output.
  • Understanding fluid balance during exercise informs performance and health strategies.

Purpose of the Study:

  • To provide evidence-based recommendations for fluid intake during exercise.
  • To outline strategies for preventing dehydration and maintaining performance.
  • To differentiate hydration needs based on exercise duration and environmental conditions.

Main Methods:

  • Review of physiological responses to dehydration during exercise.
  • Analysis of fluid replacement strategies and their impact on performance metrics.

Related Experiment Videos

  • Examination of nutritional guidelines for pre-hydration and during-exercise intake.

    • Main Results:

    • Pre-exercise hydration (400-600 mL fluid 2 hours prior) is recommended.
    • During exercise, fluid intake should aim to prevent >2% body weight loss, with 150-300 mL every 15-20 minutes.
    • Water is sufficient for <90 min exercise; carbohydrate-electrolyte beverages benefit >90 min exercise.

    Conclusions:

    • Optimal fluid replacement strategies enhance exercise performance and reduce physiological strain.
    • Hydration protocols should be individualized based on exercise intensity, duration, and environmental factors.
    • While generally unnecessary, electrolyte supplementation may be beneficial in specific conditions like initial heat acclimatization.