Effects of an electrolyte additive on hydration and drinking behavior during wildfire suppression

Wilderness & Environmental Medicine
John S CuddyBrent C Ruby

Abstract

The purpose of this study was to compare the effects of a water + electrolyte solution versus plain water on changes in drinking behaviors, hydration status, and body temperatures during wildfire suppression. Eight participants consumed plain water, and eight participants consumed water plus an electrolyte additive during 15 hours of wildfire suppression. Participants wore a specially outfitted backpack hydration system equipped with a digital flow meter system affixed inline to measure drinking characteristics (drinking frequency and volume). Body weight and urine-specific gravity were collected pre- and postshift. Ambient, core, and skin temperatures were measured continuously using a wireless system. Work output was monitored using accelerometry. There were no differences between groups for body weight, drinking frequency, temperature data, activity, or urine-specific gravity (1.019 +/- 0.007 to 1.023 +/- 0.010 vs. 1.019 +/- 0.005 to 1.024 +/- 0.009 for water and water + electrolyte groups pre- and postshift, respectively; P < .05). There was a main effect for time for body weight, demonstrating an overall decrease (78.1 +/- 13.3 and 77.3 +/- 13.3 kg pre- and postshift, respectively; P < .05) across the work shift. The water...Continue Reading

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Citations

Jun 10, 2011·International Archives of Occupational and Environmental Health·Jose A Rodríguez-MarroyoJosé G Villa
Dec 2, 2014·Journal of Thermal Biology·Brianna LuiBrent C Ruby
May 27, 2015·Journal of Occupational and Environmental Hygiene·Robert D MeadeGlen P Kenny
Mar 17, 2015·Wilderness & Environmental Medicine·John S CuddyBrent C Ruby
Feb 11, 2015·The Annals of Occupational Hygiene·Jenni RainesBrad Aisbett
Sep 30, 2014·Journal of Occupational and Environmental Hygiene·Matt BrearleyRaymond Taylor
Oct 6, 2016·International Journal of Environmental Research and Public Health·Stephanie E ChappelNicola D Ridgers
Aug 22, 2017·Journal of Occupational and Environmental Hygiene·Robert D MeadeGlen P Kenny
Jan 13, 2021·Wilderness & Environmental Medicine·Alejandro M RosalesBrent C Ruby
Oct 3, 2018·Journal of Strength and Conditioning Research·Joshua BautzJoe Suyama
Jun 1, 2021·Wilderness & Environmental Medicine·Joseph A SolBrent C Ruby
Jun 7, 2021·Journal of Occupational and Environmental Medicine·Alejandro M RosalesBrent C Ruby

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