Thank you Scott.
Upper end of zone 1 seems to be much lower than from “artificial” formulas (my Aet is at 156 and AnT at 174).
From a lot of scientific papers on the topic of training characteristics of elite athletes is clear, that they train mostly (~80%) at zone 1 and (~5%) zone 2.
Do we really get the desired physiological responses from Z1 that you talk about (Zone 2 -15%). Lab and real life situations don’t always correlate, and I would like to hear your opinion from the field.
Sorry for being so curious.
Janes