HR during Crescendo

[Stonechat]

I like Crescendo. Not difficult but a bit harder than other Inspiration workouts.

But I find that during the end of the highest effort, my HR was upper zone 3, not the supposed zone 2.
It may be that my LTHR is too low, this was from a Half Monty.
But I think the target hr should be zone 3

[bukharin]

Maybe this old thread is still relevant:

Crescendo - Heart Rate Zones

Hi, I did Crescendo for the first time this morning and for most of it my heart rate was well above the zone 2 expected according to the display, touching 1 beat below my LTHR at the end of the highest power step. I am typically finding the morning workouts harder than the same one in the afternoon, but hoping that passes. In short I am wondering if I am getting the right training effect from the workout? In long I have been reading about the importance of of the first lactic acid inflection p…