An interventional study of exercise under hot and humid conditions protocol in Physiological Stress, sponsored by Sheba Medical Center. Completed at 1 site in Israel. Open to male participants aged 18 Years to 40 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2015-12-24.
Sponsored by Sheba Medical Center · Not applicable, Interventional, and Prevention
Israel ministry of defense is examining a new protective undergarment of GORE company (chempark fabric) for the police forces. The goal of this research is to perform a comparative experiment in order to evaluate the physiological strain induced by a BC protective undergarment under exercise-heat stress conditions.
In order to physiologically evaluate a new BC protective garment for the Israeli police use under exercise-heat stress conditions, 10 young and healthy civilian volunteers will participate in this study.
The subjects will undergo 5 experiment days: Recruitment day, one day of acclimatization to heat, and 3 days of performing experiment protocol, each day dressed with different protective garment (Protective garment in current use + NBC mask, new BC protective undergarment + standard combat uniforms, new BC protective undergarment + standard combat uniforms + NBC mask).
Core (rectal) and skin temperature and heart rate will be monitored continuously, liquid balance will be recorded.the physiological heat strain will be assessed and compared between the different protective garments.
111 studies on the registry are indexed under Heat Stress Disorders; 45 are open to participants now.
This study's enrollment of 10 is below the median of 24 across 97 interventional studies indexed under Heat Stress Disorders.
Browse Heat Stress Disorders studies →Sheba Medical Center is the lead sponsor of 660 studies on the registry; 63 are open to participants now.
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Exclusion Criteria:
10 young and healthy civilian volunteers will participate in this study. The subjects will undergo 5 experiment days: 1. Recruitment , medical examination and VO2max test. 2. Acclimatization day by performing moderate exercise protocol under hot and humid climate. 3. 3 days of performing moderate exercise under hot and humid conditions protocol, each day dressed with different protective garment: 1. Protective garment in current use + NBC mask. 2. The new BC protective undergarment + standard combat uniforms 3. The new BC protective undergarment + standard combat uniforms + NBC mask
Other: exercise under hot and humid conditions protocol
acclimatization day protocol: 2 hour effort performed in a climatic chamber, which include walk on a treadmill at 5 Km/h on a 2% incline under heat conditions (40 deg. centigrade \& 40% RH) Core (rectal) and skin temperature and heart rate will be monitored continuously experiment days (3 days): 2 hour effort (2 cycles of: 50 min walk and 10 min rest-sitting) performed in a climatic chamber, which include walk on a treadmill at 5 Km/h on a 2% incline under heat conditions (30 deg. centigrade \& 60% RH) Core (rectal) and skin temperature and heart rate will be monitored continuously.
physiological strain (composite)
The physiological strain will be determined by body core temperature and heart rate of the subjects during a heat tolerance test (HTT).
Time frame: 4 days for each participant
Rectal temperature
The rectal temperature will be monitored by a rectal thermistor during each heat tolerance test (HTT).
Time frame: 4 days for each participant
Skin temperature
The skin temperature will be monitored by skin thermistors located at 3 sites (chest, arm and leg).
Time frame: 4 days for each participant
Heart rate
The heart rate will be monitored using a wearable heart rate monitor (Polar® sensor and heart rate monitor watch).
Time frame: 5 days for each participant
Sweat rate (composite)
Sweat rate will be calculated from the patients' body weight and fluid balance.
Time frame: 4 days for each participant
This study is completed, as verified in Dec 2015. You cannot join it, but the record below documents what was studied.
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Sheba Medical Center