I have a basic Training Peaks account, which I never use. I get plenty data from TR, Strava and Garmin connect.
Anyway, from time to time, TP will drop me a threshold notification. I’ve never done anything about this, but after receiving a notification today I got curious.
Currently, my HR zones are based on max HR. I can get to my max HR when running, but when riding, I never hit it.
Anyway, my question is the difference / benefits of basing HR zones on threshold HR as opposed to max HR.