Zone 1 & 2 rides by HR

However, your aet compared to vo2 max will probably not be moving much, at least not within a single base/build/specialty.

Curious why you say that? My Aet power at the beginning of the season is a lot lower than towards to the end of the season, whereas gains in V02max power throughout the season are a lot smaller. Mostly because my cardiac drift is much lower ie less than 5% for 3 hours whereas early in the season its closer to 10-15%

I say that because that is how it is presented in the majority of peer reviewed journals concerning the topic that have been discussed on the forum lately. It’s usually presented as X % of VO2max.