COLD-INDUCED SHIVERING IN MEN WITH THERMONEUTRAL SKIN TEMPERATURES

Authors
  1. Buguet, A.G.C.
  2. Livingstone, S.D.
  3. Reed, L.D.
  4. Limmer, R.E.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Twenty-two male Caucasians, aged 20-47 yr, were exposed in a cold room to air temperatures of -33C while lying in sleeping bags for 2 h. Skin and rectal temperatures as well as electromyographic activity of the chin, forearm, and thigh, were recorded. Shivering occurred in all the subjects, even though skin temperatures were maintained between 31 and 33C. It is suggested that a counter-current heat exchange occurs whereby the warm blood of the common carotid artery is cooled by cool venous blood in the jugular veins. This cooled arterial blood, in irrigating the hypothalamus, causes shivering.
Report Number
PUB-75-X-9 —
Date of publication
01 Jan 1976
Number of Pages
4
Reprinted from
J of Applied Physiology, vol 41, no 2, 1976, p 142-145
DSTKIM No
77-00984
CANDIS No
123950
Format(s):
Hardcopy

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