糖原，在有氧运动过程中，被分解成葡萄糖。由于它的存在，脂肪代谢开始。

During aerobic exercise, glycogen is broken down into glucose. In its absence, fat metabolism is initiated.

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当糖原用完之后，脂肪的分解可以产生葡萄糖。

After the glycogen reserve is used up, glucose can be obtained from the breakdown of fats.

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结果表明，只有在同时含有葡萄糖及胰岛素的灌洗液时，可阻止肝细胞内糖原分解或增加糖原的含量。

Adding glucose or insulin to the preservation solution was without effect on glycogenolysis, but a combination of added glucose plus insulin prevented glycogenolysis.

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