This study aims (1) to test the validity of a new non-invasive core thermometer, Cosinuss°, in rest and (2) during firefighting simulation tasks, against invasive temperature pill and inner-ear temperature and (3) to compare the change in core temperature of firefighters when working in two types of protective clothing (traditional turnout gear versus new concept). 11 active firefighters performed twice a selection of tasks during their periodic preventive medical examination and a fire-extinguishing task. Without correction no correlation between the Cosinuss° and thermometer pill (ICC≤0.09, p ≥ 0.154, LoA≥1.37) and a moderate correlation between Cosinuss° and inner-ear infrared (ICC = 0.40, p = 0.044, LoA±1.20) was observed. With individual correction both correlations were excellent (ICC≥0.84, p = 0.000, LoA≤0.30). However, during and after working all correlations were poor and non-significant (ICC≤0.38, p ≥ 0.091, LoA≥1.71). During firefighting tasks, the Cosinuss° is invalid for measuring the core temperature. No differences in heat development in the two types of protective clothing was proven.

中文翻译：

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监测消防员的核心温度，以验证不同类型防护服中的可穿戴式非侵入性核心温度计：并行体内验证。


本研究的目的是 (1) 测试新型非侵入式核心温度计 Cosinuss° 在休息时的有效性，以及 (2) 在消防模拟任务期间，针对侵入式体温丸和内耳温度的有效性，以及 (3) 比较变化消防员穿着两种防护服（传统消防服与新概念）工作时的核心温度。 11名现役消防员在定期预防性体检和灭火任务中执行了两次精选任务。未经校正，Cosinuss° 和温度计药片之间没有相关性（ICC≤0.09，p ≥ 0.154，LoA≥1.37），Cosinuss° 和内耳红外之间有中等相关性（ICC = 0.40，p = 0.044，LoA±1.20）观察到。通过个体校正，两种相关性都非常好（ICC≥0.84，p = 0.000，LoA≤0.30）。然而，工作期间和工作后，所有相关性都很差且不显着（ICC≤0.38，p≥0.091，LoA≥1.71）。在消防任务中，余弦°无法测量核心温度。经证实，两种防护服的发热没有差异。