<P> When experiencing glycogen debt, athletes often experience extreme fatigue to the point that it is difficult to move . As a reference, the very best professional cyclists in the world will usually finish a 4 - to 5 - hr stage race right at the limit of glycogen depletion using the first three strategies . </P> <P> When athletes ingest both carbohydrate and caffeine following exhaustive exercise, their glycogen stores tend to be replenished more rapidly; however, the minimum dose of caffeine at which there is a clinically significant effect on glycogen repletion has not been established . </P>

Where is glycogen stored when not needed for immediate energy