Hi to all of you over there,
I would like to know how Runalyze divide the heart rate zone in five zones. I would like to mean which are the reasons behind the choice I've found in the five zone. I understand that I can choose them differently from runalyze but I would like to know the origin of their choice because surely they are more professional than I am.
Thank you very much in advance for your help.
Enjoy your run.
Nibalart