Hydration Status, Fluid Intake, Sweat Rate, and Sweat Sodium Concentration in Recreational Tropical Native Runners
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...
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doaj-3fc6e58851ff4b20af4d8534f03aa4f72021-04-20T23:00:27ZengMDPI AGNutrients2072-66432021-04-01131374137410.3390/nu13041374Hydration Status, Fluid Intake, Sweat Rate, and Sweat Sodium Concentration in Recreational Tropical Native RunnersJuthamard Surapongchai0Vitoon Saengsirisuwan1Ian Rollo2Rebecca K. Randell3Kanpiraya Nithitsuttibuta4Patarawadee Sainiyom5Clarence Hong Wei Leow6Jason Kai Wei Lee7Faculty of Physical Therapy, Mahidol University, Nakhon Pathom 73170, ThailandDepartment of Physiology, Faculty of Science, Mahidol University, Bangkok 10400, ThailandGatorade Sports Science Institute, PepsiCo Life Sciences, Global R&D, Leicestershire LE4 1ET, UKGatorade Sports Science Institute, PepsiCo Life Sciences, Global R&D, Leicestershire LE4 1ET, UKDepartment of Physiology, Faculty of Science, Mahidol University, Bangkok 10400, ThailandDepartment of Physiology, Faculty of Science, Mahidol University, Bangkok 10400, ThailandHuman Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119283, SingaporeHuman Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119283, SingaporeAim: 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 <i>p</i>-value cut-off of 0.05 depicted statistical significance. Results: Males had lower relative fluid intake (6 ± 6 vs. 8 ± 7 mL·kg<sup>−1</sup>·h<sup>−1</sup>, <i>p</i> < 0.05) and greater relative fluid balance deficit (−13 ± 8 mL·kg<sup>−1</sup>·h<sup>−1</sup> vs. −8 ± 7 mL·kg<sup>−1</sup>·h<sup>−1</sup>, <i>p</i> < 0.05) than females. Males had higher whole-body sweat rates (1.3 ± 0.5 L·h<sup>−1</sup> vs. 0.9 ± 0.3 L·h<sup>−1</sup>, <i>p</i> < 0.05) than females. Mean rates of sweat sodium loss (54 ± 27 vs. 39 ± 22 mmol·h<sup>−1</sup>) were higher in males than females (<i>p</i> < 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.https://www.mdpi.com/2072-6643/13/4/1374recreational runningtropical climatesweat electrolytefluid replacementhydration plan |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Juthamard Surapongchai Vitoon Saengsirisuwan Ian Rollo Rebecca K. Randell Kanpiraya Nithitsuttibuta Patarawadee Sainiyom Clarence Hong Wei Leow Jason Kai Wei Lee |
spellingShingle |
Juthamard Surapongchai Vitoon Saengsirisuwan Ian Rollo Rebecca K. Randell Kanpiraya Nithitsuttibuta Patarawadee Sainiyom Clarence Hong Wei Leow Jason Kai Wei Lee Hydration Status, Fluid Intake, Sweat Rate, and Sweat Sodium Concentration in Recreational Tropical Native Runners Nutrients recreational running tropical climate sweat electrolyte fluid replacement hydration plan |
author_facet |
Juthamard Surapongchai Vitoon Saengsirisuwan Ian Rollo Rebecca K. Randell Kanpiraya Nithitsuttibuta Patarawadee Sainiyom Clarence Hong Wei Leow Jason Kai Wei Lee |
author_sort |
Juthamard Surapongchai |
title |
Hydration Status, Fluid Intake, Sweat Rate, and Sweat Sodium Concentration in Recreational Tropical Native Runners |
title_short |
Hydration Status, Fluid Intake, Sweat Rate, and Sweat Sodium Concentration in Recreational Tropical Native Runners |
title_full |
Hydration Status, Fluid Intake, Sweat Rate, and Sweat Sodium Concentration in Recreational Tropical Native Runners |
title_fullStr |
Hydration Status, Fluid Intake, Sweat Rate, and Sweat Sodium Concentration in Recreational Tropical Native Runners |
title_full_unstemmed |
Hydration Status, Fluid Intake, Sweat Rate, and Sweat Sodium Concentration in Recreational Tropical Native Runners |
title_sort |
hydration status, fluid intake, sweat rate, and sweat sodium concentration in recreational tropical native runners |
publisher |
MDPI AG |
series |
Nutrients |
issn |
2072-6643 |
publishDate |
2021-04-01 |
description |
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 <i>p</i>-value cut-off of 0.05 depicted statistical significance. Results: Males had lower relative fluid intake (6 ± 6 vs. 8 ± 7 mL·kg<sup>−1</sup>·h<sup>−1</sup>, <i>p</i> < 0.05) and greater relative fluid balance deficit (−13 ± 8 mL·kg<sup>−1</sup>·h<sup>−1</sup> vs. −8 ± 7 mL·kg<sup>−1</sup>·h<sup>−1</sup>, <i>p</i> < 0.05) than females. Males had higher whole-body sweat rates (1.3 ± 0.5 L·h<sup>−1</sup> vs. 0.9 ± 0.3 L·h<sup>−1</sup>, <i>p</i> < 0.05) than females. Mean rates of sweat sodium loss (54 ± 27 vs. 39 ± 22 mmol·h<sup>−1</sup>) were higher in males than females (<i>p</i> < 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. |
topic |
recreational running tropical climate sweat electrolyte fluid replacement hydration plan |
url |
https://www.mdpi.com/2072-6643/13/4/1374 |
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