Harrison M H, Saxton C
Aviat Space Environ Med. 1976 Sep;47(9):950-3.
A laboratory assessment of the thermal strain produced by wearing a protective clothing assembly, in addition to a normal flying clothing assembly, in a hot environment is described. In addition to the demonstration of an increase in thermal strain when wearing the protective clothing, two points of importance emerged. First, condition replication revealed a significant apprehension effect which confounded the physiological variables used to evaluate the thermal strain, leading to an over-estimation of the severity of that strain. Second, there was a large between-subject variation amongst the eight subjects used, which made the arithmetic mean a potentially misleading statistic for evaluating the increased physiological strain caused by the additional clothing assembly during the heat exposure. The practical implications of these observations are discussed....
描述了在炎热环境中，除穿着正常飞行服外，再穿着防护服组件所产生的热应激的实验室评估。除了证明穿着防护服时热应激增加外，还出现了两个重要问题。首先，条件复制显示出显著的忧虑效应，这混淆了用于评估热应激的生理变量，导致对该应激严重程度的高估。其次，在所使用的八名受试者之间存在很大的个体差异，这使得算术平均值成为评估热暴露期间额外服装组件引起的生理应激增加的一个潜在误导性统计量。讨论了这些观察结果的实际意义……
