I had a pretty strong day yesterday on a longer local group ride, which combined with some headwinds on the way back home, created some PR type efforts at longer durations. While I’m critical of NP in general, I’ll use it in the context of IF for the purposes of my question, because I’m curious the way others think about this.
If you had a multiple hour ride with:
- IF of .95 for 90 minutes
- IF of .9 for 2 hours
- IF of .85 for 3 hours
What conclusion do you draw from this about what has improved the most?
FTP? Fueling? Anaerobic Capacity? Mentality? (or that NP is bad and we shouldn’t use it)
For reference, here is what the zone distribution looks like: