I created a ‘fatigue resistance’ workout in Workout Creator and just about scraped through it this morning. The 3x20 minute intervals turned out to be after about 2100kj (371w), 2600kj (364w), 3100kj (345w) and FTP is currently set at 365w. On the basis I haven’t really done this sort of thing before or done much threshold lately, I’m happy enough, but looking for learns to refine it a bit and maybe adopt an approach to gauge it (maybe repeating the same workout).
Perhaps I made the intervals too hard as I could only manage 4/6 bursts in interval 2 and just did the 1st one in interval 3 and then tailed off of threshold power a bit too. From those who have a bit more knowledge about the subject, would it have been better to make the interval target lower, or is going hard key to building better resistance? Spacing the intervals out further would have improved my chances, but would that reduce the threshold stimulus?
