CONVECTIVE AND METABOLIC HEAT IN HUMAN FINGERS

Authors
  1. Ducharme, M.B.
  2. Tikuisis, P.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
The objective was to investigate the contribution of the convective heat transfer by the blood and the tissue metabolic heat production to the heat loss or gain by the finger during a 3.5 h immersion of the forearm and hand in water at temperatures (Tw) between 20 and 40C using arterial occulsion of the forearm for the last 30 min. The finger heat loss had decreased during occulsion at Tw + or - 37C but increased at Tw >37C. At thermal steady state prior to occlusion, the convective heat contributed between 33.3 and 93.8% of the total heat loss from the finger at 20 + or - Tw + or - 30C; the remaining being the tissue metabolic heat. At 38 + or - Tw + or - 40C, the environment contributed between 88.7 and 96.7% of the total finger heat gain; the remaining being the tissue metabolic heat.
Keywords
Fingers;Extremities;Heat gain
Report Number
DCIEM-93-55 — Reprint
Date of publication
02 Jan 1993
Number of Pages
6
Reprinted from
Temperature Regulation Advances in Pharmacological Sciences, 1993, p 223-228
DSTKIM No
94-02362
CANDIS No
140325
Format(s):
Hardcopy;Originator's fiche received by DSIS

Permanent link

Document 1 of 1

Date modified: