if you have to take a easy day the day before and if it's a "deep shoot me now" effort my guess is your FTP is too high.

This is also why there is a range of 95-105% for FTP training. You don't always have to be on the high end.

One way to know for sure it do a 30-50 min really hard effort. Subtract some small % of that and that's going to be ~ your FTP

Better yet is if you have some shorter FTP tests to compare it to.

I'll still stick with the # of people with FTPs set too high much > # of people with it set too low

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Brian Stover USAT LII
Accelerate3 Coaching
Insta