Cited by 142Thermoregulation and physiological responsesSports Performance and TrainingCardiovascular and exercise physiology

Drinking Strategies: Planned Drinking Versus Drinking to Thirst

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Kenefick, Robert W.·2018·Sports Medicine

Abstract

In humans, thirst tends to be alleviated before complete rehydration is achieved. When sweating rates are high and ad libitum fluid consumption is not sufficient to replace sweat losses, a cumulative loss in body water results. Body mass losses of 2% or greater take time to accumulate. Dehydration of ≥ 2% body mass is associated with impaired thermoregulatory function, elevated cardiovascular strain and, in many conditions (e.g., warmer, longer, more intense), impaired aerobic exercise performance. Circumstances where planned drinking is optimal include longer duration activities of > 90 min, particularly in the heat; higher-intensity exercise with high sweat rates; exercise where performance is a concern; and when carbohydrate intake of 1 g/min is desired. Individuals with high sweat rates and/or those concerned with exercise performance should determine sweat rates under conditions (exercise intensity, pace) and environments similar to that anticipated when competing and tailor drinking to prevent body mass losses > 2%. Circumstances where drinking to thirst may be sufficient include short duration exercise of < 1 h to 90 min; exercise in cooler conditions; and lower-intensity exercise. It is recommended to never drink so much that weight is gained.

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  1. [41]Nadel ER Fortney SM Wenger CB Paoletti R Circulatory adjustments during heat stress Exercise bioenergetics and gas exchange 1980 Amsterdam North-Holland Biomedical Press

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Authors
Kenefick, R. W.
Affiliations
United States Army (US)
Corresponding author
Kenefick, Robert W.
Venue
Sports Medicine
Published
2018-01-24
Volume
48
Issue
S1
Pages
31-37
ISSN
  • 0112-1642 (ISSN-L)
  • 1179-2035
OpenAlex
W2785137812
Cited by
142
References
60
Citations by year
2026: 9 · 2025: 10 · 2024: 19 · 2023: 11 · 2022: 14 · 2021: 28 · 2020: 19 · 2019: 20 · 2018: 12
FWCI
2.59
Type
journal article
Language
en
Open access
Locations
  • Sports Medicine (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Defense
  • Gran Sasso Science Institute
Topics
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
Keywords
dehydration, sweat rate, weight loss, exercise thermoregulation, exercise performance, carbohydrate intake, heat exposure
MeSH terms
Dehydration, Drinking, Humans, Sweating, Thirst, Water, Water-Electrolyte Balance, Exercise, Athletes

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