I was looking over stuff for tempo and LT training as it's starting to get to be that time of year and I stumbled across this
book and passage that said that too many cyclists spend too much time in this zone.
I am under the impression that riding tempo (zone 3, 10bp under LT HR) was worked up to doing 1-1.5hrs. I understand that LT training (up to 1hr), VO2 max intervals (3-8min) and anaerobic intervals (30sec -3min) are important but came after the tempo foundation was built/being built (as a new racer). I can understand that only doing z3 would be detrimental to gains, so I was wondering if that was what the book is referring to?