热应力量表决策辅助工具（HSDA）可准确预测穿着化学防护服时的个体核心体温升高情况。

Heat Strain Decision Aid (HSDA) accurately predicts individual-based core body temperature rise while wearing chemical protective clothing.

机构信息

Biophysics and Biomedical Modeling Division, U.S. Army Research Institute of Environmental Medicine, 10 General Greene Avenue, Bldg 42, Natick, MA 01760, USA; Rutgers University, School of Biomedical and Health Sciences, Newark, NJ, 07102, USA.

Land Division, Defence Science and Technology Group, Department of Defence, Melbourne, VIC, Australia; School of Exercise and Nutrition Sciences & Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia.

出版信息

Comput Biol Med. 2019 Apr;107:131-136. doi: 10.1016/j.compbiomed.2019.02.004. Epub 2019 Feb 16.

DOI:10.1016/j.compbiomed.2019.02.004

PMID:30802695

Abstract

PURPOSE

We examined the accuracy of the Heat Strain Decision Aid (HSDA) as a predictor of core body temperature in healthy individuals wearing chemical protective clothing during laboratory and field exercises in hot and humid conditions.

METHODS

The laboratory experiment examined three chemical protective clothing ensembles in eight male volunteers (age 24 ± 6 years; height 178 ± 5 cm; body mass 76.6 ± 8.4 kg) during intermittent treadmill marching in an environmental chamber (air temperature 29.3 ± 0.1 °C; relative humidity 56 ± 1%; wind speed 0.4 ± 0.1 m s). The field experiment examined four different chemical protective clothing ensembles in twenty activity military volunteers (26 ± 5 years; 175 ± 8 cm; 80.2 ± 12.1 kg) during a prolonged road march (26.0 ± 0.5 °C; 55 ± 3%; 4.3 ± 0.7 m s). Predictive accuracy and precision were evaluated by the bias, mean absolute error (MAE), and root mean square error (RMSE). Additionally, accuracy was evaluated using a prediction bias of ±0.27 °C as an acceptable limit and by comparing predictions to observations within the standard deviation (SD) of the observed data.

RESULTS

Core body temperature predictions were accurate for each chemical protective clothing ensemble in laboratory (Bias -0.10 ± 0.36 °C; MAE 0.28 ± 0.24 °C; RMSE 0.37 ± 0.24 °C) and field experiments (Bias 0.23 ± 0.32 °C; MAE 0.30 ± 0.25 °C; RMSE 0.40 ± 0.25 °C). From all modeled data, 72% of all predictions were within one standard deviation of the observed data including 92% of predictions for the laboratory experiment (SD ± 0.64 °C) and 67% for the field experiment (SD ± 0.38 °C). Individual-based predictions showed modest errors outside the SD range with 98% of predictions falling <1 °C; while, 81% of all errors were within 0.5 °C of observed data.

CONCLUSION

The HSDA acceptably predicts core body temperature when wearing chemical protective clothing during laboratory and field exercises in hot and humid conditions.

摘要

目的

我们研究了热应激决策辅助工具（HSDA）作为预测健康个体在穿着化学防护服进行实验室和现场热湿环境下作业时核心体温的准确性。

方法

实验室实验在环境室（空气温度 29.3±0.1°C；相对湿度 56±1%；风速 0.4±0.1 m/s）中对 8 名男性志愿者（年龄 24±6 岁；身高 178±5 cm；体重 76.6±8.4 kg）进行间歇式跑步机行军时，对三种化学防护服进行了检查。野外实验在延长的行军过程中（26.0±0.5°C；55±3%；4.3±0.7 m/s），对 20 名活动军人志愿者（26±5 岁；175±8 cm；80.2±12.1 kg）进行了四种不同化学防护服的检查。通过偏差、平均绝对误差（MAE）和均方根误差（RMSE）评估预测精度和精度。此外，还通过将预测值与观察值之间的±0.27°C 的预测偏差进行比较，以及与观察数据的标准差（SD）内的预测值进行比较来评估准确性。

结果

对于实验室（偏差-0.10±0.36°C；MAE 0.28±0.24°C；RMSE 0.37±0.24°C）和野外实验（偏差 0.23±0.32°C；MAE 0.30±0.25°C；RMSE 0.40±0.25°C）中的每种化学防护服，核心体温预测均准确。从所有模型数据来看，所有预测中有 72%在观察数据的一个标准差内，包括实验室实验的 92%（SD±0.64°C）和野外实验的 67%（SD±0.38°C）。个体基础预测在 SD 范围之外存在适度误差，98%的预测值低于 1°C；而 81%的所有误差均在观察数据的 0.5°C 以内。