If an exercise session is expected to significantly deplete muscle glycogen, pre-session or intra-session fueling becomes important.

“if you're going to go do a session though where you're going to be really concerned with muscle glycogen depletion and again you can go back that episode to learn of different types uh when those thresholds hits and what you worry about it then feeling would be important you would either need to have something before the session or consume it during the session”