TY  - JOUR
PY  - 2009//
TI  - Efficacy of Field Treatments to Reduce Body Core Temperature in Hyperthermic Subjects
JO  - Medicine and science in sports and exercise
A1  - Sinclair, Wade H.
A1  - Rudzki, Stephan J.
A1  - Leicht, Anthony S.
A1  - Fogarty, Alison L.
A1  - Winter, Susan K.
A1  - Patterson, Mark J.
SP  - 1984
EP  - 1990
VL  - 41
IS  - 11
N2  - PURPOSE:: To contrast the effects of three postcooling techniques in reducing body core temperature (Tc) in exercise-induced hyperthermic participants on the cessation of exercise. METHODS:: Eleven healthy active male volunteers were cooled during a 40-min period using three different methods: ice packs to the neck, axillae, and groin (ICE); water spray and fan (FAN); and 2 L of chilled (20 degrees C) intravenous saline administered during a 20-min period (IV). Rate of decrease in Tc, cardiovascular responses, and any incidence of reported adverse effects were investigated. Trials were presented in a counterbalanced order with the volunteers' body core temperature being elevated to 40.0 degrees C on three occasions via an intermittent walk-run (2 min at 6 km.h and 4 min at 10 km.h) protocol conducted within a climate-controlled chamber (34.2 +/- 0.5 degrees C and 62.3 +/- 3.1% relative humidity). RESULTS:: Rate of Tc reduction during the first 20 min of ooling was greater for FAN compared with ICE (0.09 +/- 0.02 degrees C.min vs 0.07 +/- 0.02 degrees C.min, P < 0.05), whereas IV did not differ with the other trials (0.08 +/- 0.01 degrees C.min, P > 0.05). Three participants complained of numbness or paresthesia in their arm or hand during administration of the chilled saline, although these symptoms resolved within 5 min of ceasing the infusion. CONCLUSIONS:: All three cooling techniques reduced Tc and would be suitable for first aid application in a field setting during transportation to adequate medical facilities. Chilled IV saline did not produce any contraindications, providing a suitable alternative for Tc cooling.<p />  <p>Language: en</p>
LA  - en
SN  - 0195-9131
UR  - http://dx.doi.org/10.1249/MSS.0b013e3181a7ae82
ID  - ref1
ER  -