The effect of prescribed fluid consumption on physiology and work behavior of wildfire fighters

Raines, Jenni, Snow, Rodney, Petersen, Aaron, Harvey, Jack, Nichols, David and Aisbett, Brad 2013, The effect of prescribed fluid consumption on physiology and work behavior of wildfire fighters, Applied ergonomics, vol. 44, no. 3, pp. 404-413.

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Title The effect of prescribed fluid consumption on physiology and work behavior of wildfire fighters
Author(s) Raines, Jenni
Snow, Rodney
Petersen, Aaron
Harvey, Jack
Nichols, David
Aisbett, Brad
Journal name Applied ergonomics
Volume number 44
Issue number 3
Start page 404
End page 413
Total pages 10
Publisher Pergamon
Place of publication Oxford, England
Publication date 2013-05
ISSN 0003-6870
1872-9126
Keyword(s) ad libitum
core temperature
firegrounds
fluid volumes
heart rates
physiological functions
work activities
work behavior
Summary The purpose of this study was to examine 1) wildfire fighters' ability to consume the prescribed fluid volume (1200 mL h-1), 2) the effect of fluid intake on plasma sodium and hydration, and 3) the effect of fluid intake on firefighters' heart rate, core temperature and activity during emergency suppression shifts. Methods: Thirty-four firefighters were divided into ad libitum (AD, n = 17) and prescribed (PR, n = 17) drinking groups. Results: PR drinkers did not meet the prescribed fluid target, yet consumed over double the volume of AD drinkers. No differences between groups in plasma sodium or hydration were noted. PR drinking resulted in lower core temperature between 2 and 6 h. This did not coincide with reduced cardiovascular strain, greater work activity or larger distances covered when compared to AD drinkers. Conclusion: Extra fluid consumption (above AD) did not improve firefighter activity or physiological function (though PR firefighters core temperature was lower earlier in their shift). Firefighter can self-regulate their fluid consumption behavior and work rate to leave the fireground euhydrated.
Language eng
Field of Research 110602 Exercise Physiology
Socio Economic Objective 970111 Expanding Knowledge in the Medical and Health Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2013, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30056853

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Created: Thu, 17 Oct 2013, 14:54:52 EST by Jane Moschetti

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