Cited by 77Thermoregulation and physiological responsesCardiovascular and exercise physiologyExercise and Physiological Responses

Rehydration with drinks differing in sodium concentration and recovery from moderate exercise-induced hypohydration in man

Merson, Stuart J., Maughan, Ronald J., Shirreffs, Susan M.·2008·European Journal of Applied Physiology

Abstract

To investigate how differing moderate sodium chloride concentrations affect rehydration after exercise and subsequent exercise capacity, eight males lost 1.98 +/- 0.1% body mass exercising in the heat, then consumed one of four drinks in a volume equivalent to 150% of mass loss. Drinks were identical except for sodium chloride content (1 +/- 1, 31 +/- 1, 40 +/- 1, 50 +/- 1 mmol/l). After 4 h recovery subjects cycled for 5 min at 70% VO(2peak) then at 95% VO(2peak) until volitional fatigue. Urine output was inversely related to sodium intake: more was produced with the 1 than the 40 and 50 mmol/l drinks (P < 0.01). Time to exhaustion in the exercise capacity test was not different between treatments (P = 0.883). The addition of 40 or 50 mmol/l of sodium chloride to a rehydration beverage reduced subsequent urine output, thereby providing more effective rehydration than a sodium-free drink. This did not, however, result in improved performance 4 h after the end of the rehydration period.

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Crossref · 10.1007/s00421-008-0748-0

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Authors
Merson, S. J., Maughan, R. J., & Shirreffs, S. M.
Affiliations
Loughborough University (GB)
Corresponding author
Shirreffs, Susan M.
Venue
European Journal of Applied Physiology
Published
2008-05-08
Volume
103
Issue
5
Pages
585-594
ISSN
  • 0020-9376 (ISSN-L)
  • 1439-6319
  • 1439-6327
OpenAlex
W2048101016
Cited by
77
References
50
Citations by year
2026: 3 · 2025: 2 · 2024: 1 · 2023: 5 · 2022: 2 · 2021: 6 · 2020: 6 · 2019: 2 · 2018: 4 · 2017: 14 · 2016: 1 · 2015: 2 · 2014: 11 · 2013: 3 · 2012: 5
FWCI
2.03
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Applied Physiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
Keywords
rehydration, sodium chloride, sodium intake, exercise capacity, time to exhaustion, urine output, exercise in the heat, volitional fatigue
MeSH terms
Adult, Beverages, Bicycling, Body Weight, Chlorides, Dehydration, Electrolytes, Fluid Therapy, Heart Rate, Humans, Male, Osmolar Concentration, Potassium, Sodium, Water-Electrolyte Balance, Anaerobic Threshold, Exercise

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