Wednesday, June 14, 2023

What I mean when I talk about A1 and A2 training.


A1 target around 65% HRmax 
(maybe 70% HRmax if you are very fit)

A2 target around 70% HRmax 
(maybe 75%-80% HRmax if you are very fit.)

Doing long pieces (30-60 minutes most days) in these ranges represents a significant commitment.  The goal of splitting them into two ranges is primarily psychological -- on 'a' days the workout requires a little bit more than on 'b' days.