Originally Posted by
ToddTheBod
The key takeaway here is that if you're well trained, some of the stimulus you'd receive from HIIT, i.e. calcium leakage, doesn't actually occur, so they're not as useful/don't work well for well trained athletes. The other takeaway is that doing HIIT has potentially unintended consequences regarding carb vs. fat burning. Doing too much HIIT will make you very good at carb burning, which makes you not good over long aerobic races.
What does "well trained" mean in this context. I typically consider myself "well trained" but that doesn't necessarily mean what a coach might mean.
Personal context: Riding seriously for about 10 years now, first 3-4 were sort of aimless, no real structure. Last 6ish have been 70% structured with some real coaching thrown in.
I've listened to the FTP episode and partially through the Ashton interview. Liking them thus far and really appreciate things like un-truthing the "FTP = 1-hour max power" myth.