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首页> 美国政府科技报告 >Influence of Metabolic Rate at 40 C Ambient Temperature on Work Tolerance Timeswith Varying Levels of Canadian Forces NBC Protective Clothing
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Influence of Metabolic Rate at 40 C Ambient Temperature on Work Tolerance Timeswith Varying Levels of Canadian Forces NBC Protective Clothing

机译：40℃环境温度下代谢率对工作耐受时间的影响加拿大力量NBC防护服的变化水平

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The Canadian Forces has a requirement to be prepared to operate in a nuclear,biologically, and/or chemically (NBC) contaminated environment in the event of war. To protect personnel working in this environment from the effects of contaminating agents an individual protective ensemble (IPE) has been developed which consists of a facial mask/respirator, a clothing coverall, overboots and gloves. Depending on the likelihood and severity of the perceived threat, either the coverall alone may be donned or the entire IPE may be donned so that no skin surface and no portion of the usual combat fatigue clothing is exposed to the environment. The components of the IPE are either semi-permeable or impermeable to moisture penetration; thus the ability to evaporate sweat from the skin surface is severely impaired. This study examined the effects of a warm environmental temperature (40 C and 50% relative humidity) and metabolic rate on soldier's work tolerance time (WTT) while wearing various levels of NBC defense protective clothing. Subjects were tested wearing three levels of clothing protection; combat fatigues (Low); fatigues and a semi-permeable NBC overgarment (Med); fatigues and NBC overgarment, gloves, boots and respirator (High). WTT was the time until rectal temperature reached 39.3 C, heart rate reached 95% maximum, dizziness or nausea precluded further exercise, or 5 h had elapsed.

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