M55 running with F6 and HR strap. My max HR is 188.
I've recently started zone 2 running and GC has three ways to calculate HR zones - %LTHR, %HR Max and %HR Reserve.
With %LTHR Z2 is just about doable but I keep creeping into Z3. With %HR Max I'd be just as well walking slowly everywhere (!). %HR gives me the best Z2 that is doable and no creep into Z3.
Can someone explain to me what is the best method to use?
What method do you use and why?