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Combat soldiers are required to perform under strenuous physical conditions; hence, their physical fitness is a crucial factor in their survivability.
The Auxiliary Device- "Minkal", is suggested (by its manufactures) to be able to reduce the soldiers' physiological strain by lowering the absolute load being carried by the soldier. As a result, it may improve the soldier's physiological abilities and performance through enduring missions with heavy loads, and may lead to better protection on the soldier from overuse injuries.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| study | Experimental | The participants will undergo 6 days of study. The first day of the study include medical examination, maximal oxigen consumption day and anthropometric mesurments. Then The participants will undergo heat tolerance test 5 times (in different days). first day- without load. second day- with back load of 40% of the body weight. third day- with back load of 40% of the body weight and the Auxilairy Device. fourth day- with back load of 60% of the body weight. fifth day- with back load of 60% of the body weight and the Auxilairy Device. The rectal temperature, skin teperature and heart rate will be mesured each day and compered afterwards. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| "Minkal"- Auxiliary device to alleviate backload | Device | The participants will undergo 6 days of study. The first day of the study include medical examination, maximal oxigen consumption day and anthropometric mesurments. Then The participants will undergo heat tolerance test 5 times (in different days). first day- without load. second day- with back load of 40% of the body weight. third day- with back load of 40% of the body weight and the Auxilairy Device. fourth day- with back load of 60% of the body weight. fifth day- with back load of 60% of the body weight and the Auxilairy Device. The rectal temperature, skin teperature and heart rate will be mesured each day and compered afterwards. |
| Measure | Description | Time Frame |
|---|---|---|
| Physiological Load with and without the auxiliary device | The physiological load will be measured using a heat tolerance test(HTT). Each paricipant will undergo a HTT 5 times (in different days). first day- without load. second day- with back load of 40% of the body weight. third day- with back load of 40% of the body weight and the Auxilairy Device. fourth day- with back load of 60% of the body weight. fifth day- with back load of 60% of the body weight and the Auxilairy Device. The rectal temperature, skin teperature and heart rate will be mesured in each HTT and compered afterwards to assess the physiological load. | 6 days for each patient. |
| Measure | Description | Time Frame |
|---|---|---|
| Rectal temperature | The Rectal temperature will be mesured by a rectal thermistore during each HTT. | 6 days |
| Skin temperature | The Skin temperature will be mesured by skin thermistores on three sites (chest, leg and arm). |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Chen Makernatz, MD | Institute physician | Principal Investigator |
| Yuval Heled, PhD | Director of the military physiology institute, IDF medical corps | Study Director |
| Ran Yanovich, MA | The director's deputy of the military physiology institute, IDF medical corps | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Institute of military physiology | Ramat Gan | Israel |
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| 6 days |
| Heart Rate | Heart rate will be monitored using a polar watch. | 6 days |
| Sweat Rate | Sweat rate will be calculated from the patient's weight and his water balance. | 6 days |