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

Abstract

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.

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  • Publisher Full Text
  • Authors+Show Affiliations

    ,

    Centre for Exercise and Sports Science, Deakin University, Burwood 3125, Australia.

    , , , ,

    Source

    Applied ergonomics 44:3 2013 May pg 404-13

    MeSH

    Adolescent
    Adult
    Aged
    Body Temperature
    Dehydration
    Disasters
    Drinking
    Female
    Firefighters
    Fires
    Guidelines as Topic
    Heart Rate
    Humans
    Male
    Middle Aged
    Occupational Diseases
    Physical Exertion
    Sodium
    Water-Electrolyte Balance
    Young Adult

    Pub Type(s)

    Journal Article

    Language

    eng

    PubMed ID

    23149116

    Citation

    Raines, Jenni, et al. "The Effect of Prescribed Fluid Consumption On Physiology and Work Behavior of Wildfire Fighters." Applied Ergonomics, vol. 44, no. 3, 2013, pp. 404-13.
    Raines J, Snow R, Petersen A, et al. The effect of prescribed fluid consumption on physiology and work behavior of wildfire fighters. Appl Ergon. 2013;44(3):404-13.
    Raines, J., Snow, R., Petersen, A., Harvey, J., Nichols, D., & Aisbett, B. (2013). The effect of prescribed fluid consumption on physiology and work behavior of wildfire fighters. Applied Ergonomics, 44(3), pp. 404-13. doi:10.1016/j.apergo.2012.10.002.
    Raines J, et al. The Effect of Prescribed Fluid Consumption On Physiology and Work Behavior of Wildfire Fighters. Appl Ergon. 2013;44(3):404-13. PubMed PMID: 23149116.
    * Article titles in AMA citation format should be in sentence-case
    TY - JOUR T1 - The effect of prescribed fluid consumption on physiology and work behavior of wildfire fighters. AU - Raines,Jenni, AU - Snow,Rodney, AU - Petersen,Aaron, AU - Harvey,Jack, AU - Nichols,David, AU - Aisbett,Brad, Y1 - 2012/11/10/ PY - 2011/03/21/received PY - 2012/09/27/revised PY - 2012/10/04/accepted PY - 2012/11/15/entrez PY - 2012/11/15/pubmed PY - 2013/7/3/medline SP - 404 EP - 13 JF - Applied ergonomics JO - Appl Ergon VL - 44 IS - 3 N2 - UNLABELLED: 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. SN - 1872-9126 UR - https://www.unboundmedicine.com/medline/citation/23149116/The_effect_of_prescribed_fluid_consumption_on_physiology_and_work_behavior_of_wildfire_fighters_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0003-6870(12)00148-2 DB - PRIME DP - Unbound Medicine ER -