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Physiology (Bethesda). 2005 Aug;20:260-70.

Skeletal muscle glucose uptake during exercise: how is it regulated?

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1
Department of Human Physiology, Institute of Exercise and Sport Sciences, Copenhagen Muscle Research Centre, University of Copenhagen, Copenhagen, Denmark.

Abstract

The increase in skeletal muscle glucose uptake during exercise results from a coordinated increase in rates of glucose delivery (higher capillary perfusion), surface membrane glucose transport, and intracellular substrate flux through glycolysis. The mechanism behind the movement of GLUT4 to surface membranes and the subsequent increase in transport by muscle contractions is largely unresolved, but it is likely to occur through intracellular signaling involving Ca(2+)-calmodulin-dependent protein kinase, 5'-AMP-activated protein kinase, and possibly protein kinase C.

PMID:
16024514
DOI:
10.1152/physiol.00012.2005
[Indexed for MEDLINE]
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