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Cited by 23

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Hydration Status, Fluid Intake, Sweat Rate, and Sweat Sodium Concentration in Recreational Tropical Native Runners

Surapongchai, Juthamard, Saengsirisuwan, Vitoon, Rollo, Ian, Randell, Rebecca K., Nithitsuttibuta, Kanpiraya, Sainiyom, Patarawadee, Leow, Clarence Hong Wei, Lee, Jason Kai Wei·2021·Nutrients
DOI 10.3390/nu13041374
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Abstract

Aim: The purpose of this study was to evaluate hydration status, fluid intake, sweat rate, and sweat sodium concentration in recreational tropical native runners. Methods: A total of 102 males and 64 females participated in this study. Participants ran at their self-selected pace for 30–100 min. Age, environmental conditions, running profiles, sweat rates, and sweat sodium data were recorded. Differences in age, running duration, distance and pace, and physiological changes between sexes were analysed. A p-value cut-off of 0.05 depicted statistical significance. Results: Males had lower relative fluid intake (6 ± 6 vs. 8 ± 7 mL·kg−1·h−1, p < 0.05) and greater relative fluid balance deficit (−13 ± 8 mL·kg−1·h−1 vs. −8 ± 7 mL·kg−1·h−1, p < 0.05) than females. Males had higher whole-body sweat rates (1.3 ± 0.5 L·h−1 vs. 0.9 ± 0.3 L·h−1, p < 0.05) than females. Mean rates of sweat sodium loss (54 ± 27 vs. 39 ± 22 mmol·h−1) were higher in males than females (p < 0.05). Conclusions: The sweat profile and composition in tropical native runners are similar to reported values in the literature. The current fluid replacement guidelines pertaining to volume and electrolyte replacement are applicable to tropical native runners.

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Cited by

Metadata

Authors
Surapongchai, J., Saengsirisuwan, V., Rollo, I., Randell, R. K., Nithitsuttibuta, K., Sainiyom, P., Leow, C. H. W., & Lee, J. K. W.
Affiliations
  • Faculty of Physical Therapy, Mahidol University, Nakhon Pathom 73170, Thailand
  • Department of Physiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
  • Gatorade Sports Science Institute, PepsiCo Life Sciences, Global R&amp;D, Leicestershire LE4 1ET, UK
  • Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119283, Singapore
ORCID
Venue
Nutrients
Publisher
MDPI AG
Published
2021-04-20
Volume
13
Issue
4
Pages
1374
ISSN
2072-6643
DOI
10.3390/nu13041374
Cited by
23
References
13
Language
en
Licence
creativecommons.org/licenses/by/4.0/ (vor)
Funders
  • Faculty of Physical Therapy, Mahidol University (n/a)
  • Suntory PepsiCo Beverage Thailand Co. (n/a)
  • Gatorade Sports Science Institute (n/a)

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