CB (Chemical Biological)protective clothing provides a thermal resistance between the human body and its environment. CB protective clothing will be essential for combat soldiers in case of non conventional attacks. "Lifebeam" developed a new non invasive sensor for body core temperature detection. The research purpose is to evaluate the "Lifebeam" sensor during heat tolerance test while wearing CB protective clothing.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
PREVENTION
Masking
NONE
Enrollment
10
The "lifebeam" sensor will be attached to the participant's skin during the HTT.
Sheba medical center
Tel-Hashomer, Ramat- Gan, Israel
Heat tolerance test
The test is performed in a climatic chamber at a temperature of 40oC and 40% relative humidity. During the test, the subject walks on a treadmill at a speed of 5 km/hr at a 2% grade for 2h. Body core temperature and heart rate are continuously monitored, and sweat rate is computed from body weight prior to and after the test, corrected for fluid intake. Heat intolerance is determined when body core temperature elevates above 38.5oC, when heart rate elevates above 150 bpm, or when either does not tend to reach a plateau.
Time frame: 1 year
VO2 test
Volunteer's oxygen consumption (VO2) will be monitored continuously with a metabolic chart (ZAN), while running for 10 min on a treadmill under comfortable environmental conditions.
Time frame: 1 year
Skin temperature
The volunteers will undergo heat tolerance test. Their skin temperature will be measured by skin thermistors and will be monitored continuously and viewed by the attending medical staff. Automatically all data will be recorded by the monitoring Biopac system.
Time frame: 1 year
Rectal temperature
The volunteers will undergo heat tolerance test. Their rectal temperature will be measured by rectal thermistor and will be monitored continuously and viewed by the attending medical staff. Automatically all data will be recorded by the monitoring Biopac system.
Time frame: 1 year
Heart rate
During the HTT and the VO2 test heart rates will be monitored continuously and will be stored by a heart rate wristwatch, (POLAR, Finland).
Time frame: 1 year
blood circulation parameters
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Evaluation by the optic sensor "Lifebeam" of the blood circulation parameters (heart rate, blood flow velocity, perfusion, and ventilation rate) in the peripheral arterioles
Time frame: 1 year