Ice vests extend physiological work time while wearing explosive ordnance disposal protective clothing in hot and humid conditions

Explosive ordnance disposal (EOD) technicians may be required to work in hot humid environments while wearing heavy protective clothing. We investigated the ability of an ice vest to attenuate physiological strain and subsequently extend work tolerance.
Eight male participants (24.3±4.1 yr, 51.3±4.1 mL·kg-1·min-1) walked (4.5 km·h-1) in simulated hot and humid conditions (35 °C; 50% relative humidity). Participants wore either an EOD suit (CON) or EOD and ice vest (IV). Heart rate, core and skin temperature were recorded continuously.
Participants walked longer in IV compared to CON (8.1±7.4 min, p<.05). Over 90% of trials were terminated based on participants reaching 90% of their maximum heart rate. IV resulted in cooled skin (p<.001) and a physiologically negligible change in core temperature (p<.001). A condition by time interaction was identified for heart rate (p<.001), with a lower rate of rise in the IV condition.
The cardiovascular inefficiency that limited performa..., , , # Data from: Ice vests extend physiological work time while wearing explosive ordnance disposal protective clothing in hot and humid conditions

Authors: Kate P Hutchins, Matthew J Maley, Aaron J E Bach, Geoffrey M Minett, Kelly L Stewart, Ian B Stewart

This study aimed to investigate the effect of an ice vest on physiological responses and work capacity while in an EOD ensemble in simulated conditions. It was hypothesised that the ice vest would alleviate the physiological strain and extend work time while wearing the EOD ensemble in hot, humid conditions.

The authors have provided the raw physiological data (EOD_physiological_data.csv) and the work time data alongside the termination criteria (EOD_work_time_data.csv).

### **Description of the data and file structure**

##### Measures in EOD\_physiological\_data.csv

Work Time (minutes) - abbreviated to 'Time'

Core (rectal) Temperature (°C) - abbreviated to 'Tc'

Mean Skin Temperature (°C) - abbreviated to 'Tsk'

Heart Rate (bpm) -...

爆炸物处理（Explosive Ordnance Disposal, EOD）技术人员可能需要身着重型防护服，在高温高湿环境中开展作业。本研究旨在探究降温背心（ice vest）能否缓解生理负荷，并进而提升作业耐受时长。

招募8名男性受试者（年龄24.3±4.1岁，最大摄氧量51.3±4.1 mL·kg⁻¹·min⁻¹），在模拟高温高湿环境（35℃，相对湿度50%）下以4.5 km·h⁻¹的速度行走。受试者分别身着EOD防护服（对照组，CON），或EOD防护服搭配降温背心（实验组，IV），持续记录心率、核心体温与皮肤温度。

实验组受试者的行走时长显著长于对照组（8.1±7.4 min，p<0.05）。超过90%的试验终止原因为受试者心率达到最大心率的90%。实验组受试者皮肤温度显著降低（p<0.001），而核心体温仅出现生理学上可忽略的微小变化（p<0.001）。心率呈现出实验条件与时间的交互效应（p<0.001），实验组的心率上升速率显著更低。

本研究原探讨的限制作业表现的心血管低效问题……
# 数据来源：《高温高湿环境下穿爆炸物处理防护服时降温背心可延长生理作业时长》

作者：凯特·P·哈钦斯（Kate P Hutchins）、马修·J·马利（Matthew J Maley）、亚伦·J·E·巴赫（Aaron J E Bach）、杰弗里·M·米尼特（Geoffrey M Minett）、凯利·L·斯图尔特（Kelly L Stewart）、伊恩·B·斯图尔特（Ian B Stewart）

本研究旨在探究模拟环境下身着EOD防护服套装时，降温背心对生理反应与作业能力的影响。研究假设：在高温高湿环境中身着EOD防护服套装时，降温背心可缓解生理负荷并延长作业时长。

研究者已公开原始生理数据（EOD_physiological_data.csv）以及包含终止判定标准的作业时长数据（EOD_work_time_data.csv）。

### 数据与文件结构说明

##### EOD_physiological_data.csv 包含的测量指标
- 作业时长（分钟）——缩写为“Time”
- 核心（直肠）体温（℃）——缩写为“Tc”
- 平均皮肤温度（℃）——缩写为“Tsk”
- 心率（bpm）——……