ILO Home
Go to the home page
Site map | Contact us Franšais | Espa˝ol

CISDOC database

Document ID (ISN)111328
CIS number 10-0899
ISSN - Serial title 1545-9624 - Journal of Occupational and Environmental Hygiene
Year 2011
Convention or series no.
Author(s) Williams W.J., Coca A., Roberge R., Shepherd A., Powell J., Shaffer R.E.
Title Physiological responses to wearing a prototype firefighter ensemble compared with a standard ensemble
Bibliographic information Jan. 2011, Vol.8, p.49-57. Illus. 37 ref.
Abstract This study investigated the physiological responses to wearing a standard firefighter ensemble (SE) and a prototype ensemble (PE) modified from the SE that contained additional features, such as magnetic ring enclosures at the glove-sleeve interface, integrated boot-pant interface, integrated hood-SCBA facepiece interface, and a novel hose arrangement that rerouted self-contained breathing apparatus (SCBA) exhaust gases back into the upper portion of the jacket. Although the features of the PE increased the level of encapsulation of the wearer that could lead to increased physiological stress compared with the SE, it was hypothesized that the rerouted exhaust gases provided by the PE hose assembly would provide convective cooling to the upper torso, reduce the thermal stress experienced by the wearer and reduce the overall physiological stress imposed by the PE such that it would be either less or not significantly different from the SE. Ten subjects (seven male, three female) performed treadmill exercise in an environmental chamber while wearing either the SE with an SCBA or the PE with an SCBA. Heart rate, rectal temperature, sweat loss, and endurance time were measured. It was concluded that the rerouting of exhaust gases to the jacket did not provide significant convective cooling or reduce thermal stress compared with the SE under the mild conditions selected, and the data therefore did not support the hypotheses of the present study.
Descriptors (primary) heat load; fire fighting; protective clothing
Descriptors (secondary) pulse rate; body temperature; equipment testing; comparative study; supplied air respirators
Document type D - Periodical articles
Subject(s) Commerce, services, offices
Personal protection
Occupational physiology
Broad subject area(s) Physiology, ergonomics
Physical hazards
Browse category(ies) Heat and cold
Fire fighting, police, prisons and the armed forces
Protective clothing