Originally Posted by ochizon

I know that power-based training is all the rage for road training regimens (5x5, 2x20 intervals, etc), but is there any data on the usefulness of power-based interval training for track purposes? I would imagine there would be some usefulness, but from the little I have learned about track so far, all training is all-out efforts, then rest, as opposes to %'s of FTP. Any thoughts on this?