hypoxia and raised cytoplasmic levels of calcium in muscle cells after work exert an insulin-like action on glucose uptake , which may be ascribed to the intracellular acidity. -- the interrelationship between glucose and ffa oxidation is in part regulated by known key enzymes of the contracting muscle , but the exact extramuscular substrate mobilization appears to require both hormonal and supplementary feed-back control in storage organs. -- during prolonged muscular exercise , the successive utilization of carbohydrate and fat from endogenous and exogenous stores can , however , in principle be attributed to known hormonal regulation. -- oral intake of glucose solution before and during work evokes a prolonged glucose utilization with relative hyperinsulinemia and hypoglucagonemia , preventing hepatic glycogenolysis .
C0596981
muscle cells
C0026845
muscular