Originally Posted by
baribari
Hmm. I would have thought sweet spot training would have a bigger affect, hour per hour, if only because maintaining Z2 for a long time is relatively easy, but maintaining ~95% of FTP is relatively hard for more than a few minutes...
I never said long Z2 was the only (or even best) way to increase your FTP. But there are physiological adaptions that this type of training produces, that you won't get from training at higher intensities. Basically what the book I referenced above is saying, is that a well structured base training phase will lay the foundation for other types of adaptations that come after.
Should you not do much too Z2 base after some point (build period?)?
Yeah that why I mentioned doing this type of training during base phase. I do much less of it after that, although I try to get a longer ride in at least every 3-4 weeks to maintain my endurance base.