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During moderate to high intensity activity, how long can stored muscle glycogen last?
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10 seconds
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1 - 1.5 hours
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4 - 5 hours
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24 hours
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During moderate to high intensity activity, the body primarily relies on stored muscle glycogen for energy. Muscle glycogen is the storage form of glucose in the muscles. The duration for which stored muscle glycogen can last depends on the intensity of the activity. During moderate to high intensity activity, the body depletes its glycogen stores at a faster rate. On average, stored muscle glycogen can last for about 1 to 1.5 hours during such activities. After this time, the body may start to rely on other energy sources such as fat.
