I am doing the Sweet Spot Base 2 block at present and have noticed that whenever I get a program on Trainer Road which effectively is an over-under interval program it kills me. I have never completed a single over-under workout without having to pause the session at least 3-4 times and I run out of energy…I then crawl to the end of the workout before slumping off the bike absolutely knackered.
But when I do a short sharp interval program (today I did Taylor -2 which is 14x30 sec intervals with 30 secs rest - 3 blocks) I have to put the intensity up. Today I went up to 107% and then popped on an extended 30 mins of lower level riding at 65% ftp as still felt fine.
Can anyone explain to me why I am dying on one whilst simultaneously finding the other pretty easy?
Thanks in advance