PHYSIOLOGICAL EVALUATION OF THE IMPROVED ENVIRONMENTAL CLOTHING SYSTEM (IECS) THE NEW CANADIAN FORCES COLD WEATHER CLOTHING SYSTEM

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Authors
  1. Frim, J.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
The Improved Environmental Clothing System (IECS) is a new cold weather clothing system designed to replace the current Canadian Forces in-serivce cold weather clothing system. The most unique feature of the system is that only the outer layer of clothing is added or removed as required to adjust the level of insulation during a change of activity level. The IECS uses Goretex (TRADEMARK) as a water-vapour permeable wind and water barrier to partly achieve this unique functionality. The present study compared the physiological responses of human test subjects wearing the IECS or the current cold weather clothing systems(s) in a laboratory setting under carefully controlled conditions of temperatures (-10C and -40C), wind, (0.4 and 20 km/h), and activity (rest or intermittent work). Measurements included physiological data (deep body temperature, skin temperatures, heart rate, sweat loss), body heat exchange, and subjective thermal confort. The results showed numerous instances in which the IECS demonstrated superior performance over the current in-service clothing systems. It generally performed "better" than the other clothing configurations under most conditions by preventing excessive cooling during periods of inactivity and reducing overheating during work. The flexibility, simplicity, good looks, good feel, and overall comfort of the IECS show that it is well designed, and it was certainly well liked by the subjects. TRUNICATED
Keywords
Goretex;Improved Environmetnal Clothing System;Breathable fabric
Report Number
DCIEM-95-18 —
Date of publication
01 Jun 1995
Number of Pages
51
DSTKIM No
95-03460
CANDIS No
152606
Format(s):
Document Image stored on Optical Disk;Hardcopy

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