Heat Stress and Physiological Strain of Permeable vs. Impermeable CB Protective Garment
Current protective clothing of any kind, especially the nuclear-biological-chemical (NBC) protective garments, amplify thermal stress because of the inherent properties of the clothing material. High insulation coefficient and low water vapor permeability of the protective cloth limit the ability of sweat to readily evaporate, which consequently result with a significant elevation of body temperature and with excessive body fluid loss (because of inefficient sweating) that might result with significant dehydration.
Combat soldiers require to perform intense physical activities under hostile environmental conditions, including in contaminated areas that need the use of protective garments. The ability to fulfill a mission derives from the soldier's professionalism and from his physiological limits. It is well established that wearing protective garments affect tolerance time (TT) and performance.
To operate in contaminated areas suitable protective garments should be worn. The inherent characteristics of the current protective garments limit, however, the effective working periods with such an ensemble, which is further aggravated in hot climate. Thus, in an attempt to increase TT and enhance work effectiveness, improved protective garments, which result with a lessened heat-stress, are under different stages of development.
The relative influence of air permeability properties, garment weight and garment construction on heat stress and physiological strain will be investigated.
The results will be quantified in terms of body temperatures, heart rate, fluid balance, subjective sensation and the maximum wear time (if necessary extrapolated).
研究概览
地位
条件
研究类型
注册 (预期的)
联系人和位置
学习联系方式
- 姓名:Amit Druyan, M.D
- 电话号码:972-03-7377180
- 邮箱:Amit.Druyan@sheba.health.gov.il
学习地点
-
-
-
Ramat Gan、以色列
- 招聘中
- Sheba Medical Center
-
接触:
- Amit Druyan, M.D
- 邮箱:Amit.Druyan@sheba.health.gov.il
-
-
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
- Twelve young (20-30 yr) male subjects will voluntarily participate in this study. The potential participants will be informed of the study's nature, purpose and medical risks. Their inclusion in the study requires the medical clearance by the study's physician (CRF) and after having filled out and sign an informed consent form
Exclusion Criteria:
- heart conditions, blood pressure higher than 140/90 mmHg, known diabetes or any skin illness or lesions. Also be excluded are potential participants who were ill during the 2 weeks prior to the study
学习计划
研究是如何设计的?
设计细节
队列和干预
团体/队列 |
---|
men wearing Semipermeable garment
|
air permeable garment type BP2
|
air permeable garment type BP3
|
air permeable garment type MO
|
air permeable garment type BP1
|
研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
---|---|---|
The physiological burden of different CB Protective Garments
大体时间:1 year
|
The physiological burden of different CB Protective Garments will be mesured by a heat tolerance test (HTT). The subjects will undergo an HTT wearing different CB Protective Garments and the results which indicate physiological burden will be compared between the different garments. |
1 year
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Rectal temperature
大体时间:1 year
|
The rectal temperature will be mesured by rectal thermistore.
|
1 year
|
Skin temperature
大体时间:1 year
|
The skin temperature will be mesured by skin thermistores conected to 3 different sites (chest, leg and arm).
|
1 year
|
Heart rate
大体时间:1 year
|
Heart rate will be mesured by a polar watch.
|
1 year
|
Sweat rate
大体时间:1 year
|
The sweat rate will be calculated in each HTT from the subject's weight before and after the test and his water balance.
|
1 year
|
合作者和调查者
调查人员
- 首席研究员:Amit Druyan, M.D、Medical Corps, Israel Defense Force
研究记录日期
研究主要日期
学习开始
初级完成 (预期的)
研究完成 (预期的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
与本研究相关的术语
其他研究编号
- 883-2009-CLIT
此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.