I am using LTHR-Zones on my Forerunner. As i know my max HR from testing the auto-update feature for the max hr is disabled.
But each time i do a manual update of my LTHR i can observe that after one of my next trainings the stored max HR in the training profiles is changed (to a value i never reached at any time).
The last times when i updated my LTHR value i did a double check that my max HR was correct. But after one of the next trainings it had been changed.
I am horrified, currently i am not sure how and when my watch will change the max HR the next time, so i have to check it regularly.
Are there any others with similar observations?
Any tips how to solve this issue?
