Specialization in specific durations, like a 4-minute effort for track cycling versus the longer durations in the Tour de France, is crucial due to limitations in sustainable energy expenditure.

“and and let's let's stay with cycling um and even keep it simple and just talk about not include the track right which is you know far more far closer to an anerobic effort uh it it's sort of on the anerobic side of a peak aerobic effort but even if you think about let's go back to the the um the the distance of the 112 mile time trial that a triathlete is doing in an Iron Man right so for the most part I mean it's there's no sprinting in there he's not sprinting at the very end in fact he's probably trying to keep that relatively constant in effort to prepare himself or herself to do the the marathon run that's following”