MECHANISM OF AFTERDROP AFTER COLD WATER IMMERSION

Authors
  1. Romet, T.T.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
It was hypothesized that if afterdrop is a purely conductive phenomenon, the afterdrop during rewarming should proceed intially at a rate equal to the rate of cooling. Eight male subjects were cooled on three occasions in 22C water and rewarmed once by each of three procedures: spontaneous shivering, inhalation of heated (45C) and humidified air, and immersion up to the neck in 40C water. During spontaneous and inhalation rewarming, there were no significant differences between the cooling (final 30 min) and afterdrop (initial 10 min) rates thus supporting the hypothesis. During rapid rewarming, the afterdrop rate was significantly greater than during the preceding cooling, suggesting a convective component contributing to the increased rate of fall.
Report Number
DCIEM-88-P-30 — Research Paper; Reprint
Date of publication
15 May 1988
Number of Pages
4
Reprinted from
J of Applied Physiology, vol 65, no 4, 1988, p 1535-1538
DSTKIM No
89-00403
CANDIS No
58345
Format(s):
Hardcopy;Originator's fiche received by DSIS

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