ENERGY METABOLISM DURING COLD EXPOSURE

Authors
  1. Vallerand, A.L.
  2. Jacobs, I.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Recent advances on the influence of cold exposure on energy metabolism in animals and humans are summarized. Although the cold-induced enhancements in carbohydrate metabolism have been the focus of numerous studies, it was only recently that pieces of evidence from animal studies have suggested that cold exposure exerts an insulin-like effect on peripheral tissue glucose uptake, which appears to proceed primarily via insulin-independent pathways. Interestingly, this phenomenon wasobserved in insulin-sensitive tissues of warm- as well as cold-adapted rats. Whereas previous human studies have concentrated on the cold-induced changes in basal levels of hormones and metabolic substrates, recent work from our laboratory has demonstrated that exposure to cold at rest shifts substrate utilization from mainly lipids at thermal neutrality to carbohydrates, representing the main fuel for shivering thermogenesis. TRUNCATED
Report Number
DCIEM-92-05 — Reprint
Date of publication
01 Jan 1992
Number of Pages
5
Reprinted from
Int J Spords Med, vol 13, suppl 1, 1992, p S191-S193
DSTKIM No
93-00241
CANDIS No
127468
Format(s):
Hardcopy;Originator's fiche received by DSIS

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