HEAT STRAIN WHILE WEARING THE CURRENT CANADIAN OR A NEW HOT-WEATHER FRENCH NBC PROTECTIVE CLOTHING ENSEMBLE

PDF

Authors
  1. McLellan, T.M.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
A new nuclear, biological and chemical (NBC) protective garment has been designed for use in hot environments. This NBC battle dress uniform (NBC-BDU) is intended to be worn over the skin or, at most, over underwear and an undershirt. It is unclear whether the documented reductions in heat strain associated with wearing this clothing configuration represent simply the removal of the combat clothing layer normally worn underneath a NBC protective overgarment or an improved heat transfer through the new NBC-BDU. It was hypothesized that the removal of the combat clothing layer would produce a significant reduction in heat strain. As a result, it was also hypothesized that there would be no difference in heat strain between this new NBC-BDU and the current Canadian protective overgarment when the remaining clothing was standardized. There were 9 males who alternated 15 min of walking at 1.11 m-s 1(-) and 15 min of seated rest for a maximum of 4 h in a chamber set at 40C, 30% relative humidity and a wind speed less than 0.1 m-s 1(-) while wearing underwear, an undershirt and the current Canadian protective overgarment either with (C+C) or without (C-C) combat clothing underneath and the new NBC-BDU worn over underwear and an undershirt. TRUNCATED
Keywords
Core temperature;Sweat rate;Evaporation time
Report Number
DCIEM-96-P-24 — Reprint
Date of publication
01 Nov 1995
Number of Pages
6
Reprinted from
Aviation Space and Environmental Medicine, vol 67, no 11, 1996, p 1057-1062
DSTKIM No
97-00287
CANDIS No
500328
Format(s):
Hardcopy;Document Image stored on Optical Disk

Permanent link

Document 1 of 1

Date modified: