Abstract

This study aimed to identify a pre-cooling method to reduce the physiological and perceptual strain, and the inflammatory response, experienced by individuals who wear personal protective equipment. Eleven males (age 20 ± 2 years, weight 75.8 ± 9.3 kg, height 177.1 ± 5.0 cm) completed 15min pre-cooling (phase change vest [PCV], forearm cooling [ARM], ice slurry consumption [ICE], or a no cooling control [CON]) and 45min intermittent walk (4 km h-1, 1% gradient) in 49.5 ± 0.6 °C and 15.4 ± 1.0% RH, whilst wearing firefighter ensemble. ICE reduced rectal temperature (Tre) before heat exposure compared to CON (ΔTre: 0.24 ± 0.09 °C, p < 0.001, d=0.38) and during exercise compared to CON, ARM, and PCV (p=0.026, ηp 2=0.145). Thermal sensation was reduced in ICE and ARM vs. CON (p=0.018, ηp 2=0.150). Interleukin-6 was not affected by precooling (p=0.648, ηp 2=0.032). It is recommended that those wearing protective equipment consume 500 ml of ice slurry 15min prior to work to reduce physiological and perceptual strain.
Original languageEnglish
Pages (from-to)26-33
Number of pages8
JournalApplied Ergonomics
Volume70
DOIs
Publication statusPublished - 14 Feb 2018

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Ice
Occupational Exposure
Hot Temperature
Firefighters
Temperature
Hypesthesia
Forearm
Interleukin-6
Exercise
Weights and Measures
Equipment and Supplies
Personal Protective Equipment

Cite this

@article{12624a82bd7945ca9462bdd6f4668f8b,
title = "Practical pre-cooling methods for occupational heat exposure",
abstract = "This study aimed to identify a pre-cooling method to reduce the physiological and perceptual strain, and the inflammatory response, experienced by individuals who wear personal protective equipment. Eleven males (age 20 ± 2 years, weight 75.8 ± 9.3 kg, height 177.1 ± 5.0 cm) completed 15min pre-cooling (phase change vest [PCV], forearm cooling [ARM], ice slurry consumption [ICE], or a no cooling control [CON]) and 45min intermittent walk (4 km h-1, 1{\%} gradient) in 49.5 ± 0.6 °C and 15.4 ± 1.0{\%} RH, whilst wearing firefighter ensemble. ICE reduced rectal temperature (Tre) before heat exposure compared to CON (ΔTre: 0.24 ± 0.09 °C, p < 0.001, d=0.38) and during exercise compared to CON, ARM, and PCV (p=0.026, ηp 2=0.145). Thermal sensation was reduced in ICE and ARM vs. CON (p=0.018, ηp 2=0.150). Interleukin-6 was not affected by precooling (p=0.648, ηp 2=0.032). It is recommended that those wearing protective equipment consume 500 ml of ice slurry 15min prior to work to reduce physiological and perceptual strain.",
author = "Emily Watkins and Mark Hayes and Peter Watt and Alan Richardson",
year = "2018",
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doi = "10.1016/j.apergo.2018.01.011",
language = "English",
volume = "70",
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journal = "Applied Ergonomics",
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}

Practical pre-cooling methods for occupational heat exposure. / Watkins, Emily; Hayes, Mark; Watt, Peter; Richardson, Alan.

In: Applied Ergonomics, Vol. 70, 14.02.2018, p. 26-33.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Hayes, Mark

AU - Watt, Peter

AU - Richardson, Alan

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N2 - This study aimed to identify a pre-cooling method to reduce the physiological and perceptual strain, and the inflammatory response, experienced by individuals who wear personal protective equipment. Eleven males (age 20 ± 2 years, weight 75.8 ± 9.3 kg, height 177.1 ± 5.0 cm) completed 15min pre-cooling (phase change vest [PCV], forearm cooling [ARM], ice slurry consumption [ICE], or a no cooling control [CON]) and 45min intermittent walk (4 km h-1, 1% gradient) in 49.5 ± 0.6 °C and 15.4 ± 1.0% RH, whilst wearing firefighter ensemble. ICE reduced rectal temperature (Tre) before heat exposure compared to CON (ΔTre: 0.24 ± 0.09 °C, p < 0.001, d=0.38) and during exercise compared to CON, ARM, and PCV (p=0.026, ηp 2=0.145). Thermal sensation was reduced in ICE and ARM vs. CON (p=0.018, ηp 2=0.150). Interleukin-6 was not affected by precooling (p=0.648, ηp 2=0.032). It is recommended that those wearing protective equipment consume 500 ml of ice slurry 15min prior to work to reduce physiological and perceptual strain.

AB - This study aimed to identify a pre-cooling method to reduce the physiological and perceptual strain, and the inflammatory response, experienced by individuals who wear personal protective equipment. Eleven males (age 20 ± 2 years, weight 75.8 ± 9.3 kg, height 177.1 ± 5.0 cm) completed 15min pre-cooling (phase change vest [PCV], forearm cooling [ARM], ice slurry consumption [ICE], or a no cooling control [CON]) and 45min intermittent walk (4 km h-1, 1% gradient) in 49.5 ± 0.6 °C and 15.4 ± 1.0% RH, whilst wearing firefighter ensemble. ICE reduced rectal temperature (Tre) before heat exposure compared to CON (ΔTre: 0.24 ± 0.09 °C, p < 0.001, d=0.38) and during exercise compared to CON, ARM, and PCV (p=0.026, ηp 2=0.145). Thermal sensation was reduced in ICE and ARM vs. CON (p=0.018, ηp 2=0.150). Interleukin-6 was not affected by precooling (p=0.648, ηp 2=0.032). It is recommended that those wearing protective equipment consume 500 ml of ice slurry 15min prior to work to reduce physiological and perceptual strain.

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