Abstract
Explosive ordinance disposal (EOD) technicians are often required to wear specialised clothing combinations that not only protect against the risk of explosion but also potential chemical contamination. This heavy (>35 kg) and encapsulating ensemble is likely to increase physiological strain by increasing metabolic heat production and impairing heat dissipation [1,2]. This study investigated the physiological tolerance times of two different chemical protective undergarments (2.9 kg v's 4.2 kg), commonly worn with EOD personal protective clothing, in a range of simulated environmental extremes and work intensities.
Highlights
Explosive ordinance disposal (EOD) technicians are often required to wear specialised clothing combinations that protect against the risk of explosion and potential chemical contamination
The trials involved walking on a treadmill at 2.5, 4 and 5.5 km.h-1 at each of the following environmental conditions, 21 °C, 30 °C and 37 °C wet bulb globe temperature (WBGT)
The majority of trials across both ensembles (101/126; 80.1%) were terminated due to participants achieving a heart rate equivalent to greater than 90% of their maximum
Summary
Explosive ordinance disposal (EOD) technicians are often required to wear specialised clothing combinations that protect against the risk of explosion and potential chemical contamination. This heavy (>35 kg) and encapsulating ensemble is likely to increase physiological strain by increasing metabolic heat production and impairing heat dissipation [1,2]. This study investigated the physiological tolerance times of two different chemical protective undergarments (2.9 kg v’s 4.2 kg), commonly worn with EOD personal protective clothing, in a range of simulated environmental extremes and work intensities
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