Trained individuals, including elite athletes, can recruit slow-twitch muscle fibers and rely heavily on fat oxidation for ATP production due to superior mitochondrial function and metabolic efficiency, even at higher exercise intensities.

“so for example let's say at at an intensity of a 200 let's say 200 Watts like athlete um doesn't need to incure in that glycolic capacity as much as someone who is not very well trained so the lead athlete they can still recruit the slow twitch muscle fibers and rely a lot on fat you know to produce ATP because they have an amazing mandal function and they don't and they're very efficient metabolically speaking”