HR Zones and LTHR
Dear all, I have been doing endurance training for an Ironman (of course half) preparation and i am very close to this date. However, since i don't have proper coaching, I have not payed proper attention to my HR Zones or my LTHR threshold setting on my watch, so basically i was training blindly during last 6 month. I've just finished couple of Tri books and realized its importance. At the moment, I am a bit scared to do the guided LT test, not to exhaust my energy before the race.
I owe Garmin Forerunner 735XT watch and I saw it has an option of Auto Detection of Max HR as well as somehow it automatically sets LTHR (i think it takes from the past training). Can you advise me if this auto detection functionality on the watch can be reliable at all? or what is the best way forward to be clever before the race and have something at hand? Maybe I can use my HRs from the training history in my watch?
I will be very grateful for your help.