Hi Scott, I’m a little confused – could you clarify which HR Zone the aerobic threshold relates to please?
In your answer above you said:
“Firstly, the aerobic threshold is at the top of what is called Zone 2. And the anaerobic threshold is the top of Zone 3.”
However in the book the aerobic threshold is described as being at the upper end of Zone 1 (p57). So is the aerobic threshold at the upper end of Zone 1 or 2?
I ask because the book’s recommended training for a mountaineering objective recommends the vast majority be in Zone 1 and specifically says Zone 2 should be kept to a minimum.
On the 24 week training plan the vast majority of training is recommended at or slightly below the aerobic threshold, but if that actually corresponds to upper Zone 2 instead of upper Zone 1 then wouldn’t that mean most of training is in Zone 2, which is the opposite of what the book recommends?
Is it just the case that Training Peaks and your book have different definitions of the zones?