Cited by 74Thermoregulation and physiological responsesExercise and Physiological ResponsesSports Performance and Training

Sports Dietitians Australia Position Statement: Nutrition for Exercise in Hot Environments

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McCubbin, Alan J., Allanson, Bethanie A., Caldwell Odgers, Joanne N., Cort, Michelle M., Costa, Ricardo J.S., Cox, Gregory R., Crawshay, Siobhan T., Desbrow, Ben +10 more·2020·International Journal of Sport Nutrition and Exercise Metabolism

Abstract

It is the position of Sports Dietitians Australia (SDA) that exercise in hot and/or humid environments, or with significant clothing and/or equipment that prevents body heat loss (i.e., exertional heat stress), provides significant challenges to an athlete's nutritional status, health, and performance. Exertional heat stress, especially when prolonged, can perturb thermoregulatory, cardiovascular, and gastrointestinal systems. Heat acclimation or acclimatization provides beneficial adaptations and should be undertaken where possible. Athletes should aim to begin exercise euhydrated. Furthermore, preexercise hyperhydration may be desirable in some scenarios and can be achieved through acute sodium or glycerol loading protocols. The assessment of fluid balance during exercise, together with gastrointestinal tolerance to fluid intake, and the appropriateness of thirst responses provide valuable information to inform fluid replacement strategies that should be integrated with event fuel requirements. Such strategies should also consider fluid availability and opportunities to drink, to prevent significant under- or overconsumption during exercise. Postexercise beverage choices can be influenced by the required timeframe for return to euhydration and co-ingestion of meals and snacks. Ingested beverage temperature can influence core temperature, with cold/icy beverages of potential use before and during exertional heat stress, while use of menthol can alter thermal sensation. Practical challenges in supporting athletes in teams and traveling for competition require careful planning. Finally, specific athletic population groups have unique nutritional needs in the context of exertional heat stress (i.e., youth, endurance/ultra-endurance athletes, and para-sport athletes), and specific adjustments to nutrition strategies should be made for these population groups.

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  1. Leon, L.R., & Bouchama, A. (2015). Heat stroke. Comprehensive Physi- ology, 5(2), 611-647. PubMed ID: 25880507

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Authors
McCubbin, A. J., Allanson, B. A., Caldwell Odgers, J. N., Cort, M. M., Costa, R. J. S., Cox, G. R., Crawshay, S. T., Desbrow, B., Freney, E. G., Gaskell, S. K., Hughes, D., Irwin, C., Jay, O., Lalor, B. J., Ross, M. L. R., Shaw, G., Périard, J. D., & Burke, L. M.
Affiliations
  • Monash University (AU)
  • Cricket Australia
  • Monash University
  • Bond University (AU)
  • Paralympics Australia
  • Griffith University (AU)
  • Australian Institute of Sport
  • Griffith University
  • The University of Sydney (AU)
  • Australian Catholic University (AU)
  • Swimming Australia
  • University of Canberra (AU)
Venue
International Journal of Sport Nutrition and Exercise Metabolism
Published
2020-01-01
Volume
30
Issue
1
Pages
83-98
ISSN
  • 1526-484X (ISSN-L)
  • 1543-2742
OpenAlex
W2997405282
Cited by
74
References
140
Citations by year
2026: 9 · 2025: 18 · 2024: 15 · 2023: 8 · 2022: 8 · 2021: 9 · 2020: 7
FWCI
4.11
Type
journal article
Language
en
Open access
Locations
  • International Journal of Sport Nutrition and Exercise Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Monash University Research Portal (Monash University) (submittedVersion, other-oa)
  • Griffith Research Online (submittedVersion, cc-by)
  • Bond University Research Portal (Bond University) (submittedVersion, other-oa)
Topics
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
Keywords
exertional heat stress, exercise in the heat, heat acclimation, hydration, salt loading, fluid balance, gastrointestinal tolerance, fluid replacement, beverage temperature, menthol, youth athletes, endurance athletes, ultra-endurance athletes, sports nutrition
MeSH terms
Acclimatization, Australia, Body Temperature Regulation, Clothing, Competitive Behavior, Dehydration, Fluid Therapy, Hot Temperature, Humans, Humidity, Nutritional Requirements, Water-Electrolyte Balance, Exercise, Heat Stress Disorders, Gastrointestinal Tract, Athletic Performance, Sports Nutritional Physiological Phenomena

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