ericgu says:
though I do want to point out that carmichael doesn't depend on the MHR
Ouch!
I sit down with my "Richard Cranium" between my legs. (insert upside-down smiley face here)
Ericqu is correct, Carmichael himself, sees little use for MHR, and does in fact promote the idea of "sustainable usable HR" during the field test.
What I want to know, is what Ms. Machka thinks she's doing starting a 200k+ ride like this:
And I can maintain 170-175 bpm for a very long time without any trouble at all. In fact, in the last year or two, it takes me about 100 kms to get it to settle down somewhere in the 145-155 range.
This is the kind of remark you expect from a first or second year rider, not someone who puts up a website and gives advice about PBP.
Anyone want to offer guesses, about what M should learn from HR readings?