AI Article Synopsis
- The study evaluated three cooling methods for soldiers suffering from hyperthermia, highlighting significant differences in required water volume.
- Ten male soldiers were tested under conditions of induced hyperthermia, comparing cooling through fanning, fanning with a wet t-shirt, and a tarp-assisted cooling method that used a larger volume of water.
- Results indicated that the tarp-assisted cooling method was more effective and faster in reducing body temperature than the other methods, suggesting it could be a viable option for treating heat-related illnesses, but stressing the importance of immediate cooling methods when water supply is limited.
Article Abstract
Purpose: Three feasible cooling methods for treatment of hyperthermic individuals in the military, that differed considerably in water volume needed (none to ~80 L), were evaluated.
Methods: Ten male soldiers were cooled following exercise-induced hyperthermia (rectal temperature (T) ∼39.5 °C) using ventilation by fanning (1.7 m s), ventilation by fanning (1.7 m s) while wearing a wet t-shirt (250 mL-27 °C water) and tarp assisted cooling with oscillations (80 L of 27.2 ± 0.5 °C water; TACO).
Results: Cooling rates were higher using TACO (0.116 ± 0.032 °C min) compared to ventilation (0.065 ± 0.011 °C min, P<0.001) and ventilation in combination with a wet t-shirt (0.074 ± 0.020 °C min, P=0.002). Time to cool (TTC) to T=38.2 °C for TACO was shorter (14 ± 4 min) compared to ventilation only (20 ± 5 min; P=0.018), but not to ventilation while wearing a wet t-shirt (18 ± 6 min; P=0.090).
Conclusions: TACO may be an acceptable, efficient and feasible cooling method in case of exertional heat stroke. However, in case of limited water availability, transportat should be prioritized, and cooling of any form should be implemented while waiting for and during transport.
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Source |
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| http://dx.doi.org/10.1016/j.apergo.2022.103700 | DOI Listing |
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