Originally Posted by
Psimet2001
Exactly. Re-read that. Especially about the part about doing 20 minutes and then calculating your FTP.
Sorry mate, but you're wrong again. You need to re read it. And the software is calculating CP, not me, so it's not like I'm making this stuff up.
Essentially all you need is at least two (or more) maximal efforts of at least three minutes and less than 30 minutes duration, say one of five minutes and another of 20 minutes, although the choice is arbitrary and up to the individual.