RATES OF ENERGY SUBSTRATES UTILIZATION DURING HUMAN COLD EXPOSURE

Authors
  1. Vallerand, A.L.
  2. Jacobs, I.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
The study compared the rates of substrate utilization in seven healthy young men exposed to both the warm (control exposure at 29C; semi-nude, 14 h fasted) and to the cold for 2 h (10C, 1m.s 1(-) wind velocity). Cold exposure elevated the 2 h energy expenditure 2.46-fold in comparison to the warm (p<0.01). This cold-induced thermogenesis was accompained by increases of 588% in carbohydrate oxidation (p<0.01) and 63% in fat oxidation (p<0.05), whereas protein oxidation remained unchanged. The results demonstrate that cold exposure causes a much greater increase in the utilization of carbohydrate than lipid.
Report Number
DCIEM-89-P-16 — Reprint; Paper
Date of publication
01 Jan 1989
Number of Pages
6
Reprinted from
European J of Applied Physiology, vol 58, 1989, p 873-878
DSTKIM No
89-03913
CANDIS No
61805
Format(s):
Hardcopy;Originator's fiche received by DSIS

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