Originally Posted by
BlazingPedals
I'm going to take a wild guess that your MHR is higher than you think it is. Zone 5 is not something you an sustain for long, or without significant cost.
I'm either a freak of nature, a cardiac time bomb, or that isn't always true.
80% of my max heart rate (191) is 152.8 bpm. 191 is the highest I've ever recorded and it was a full effort up a 10% grade.
Literature says that zone 5 is only sustainable in short bursts (less than a minute).
I sustained what literature calls my zone 5 for over an hour.
I'll admit I'm a HR noob, but can you enlighten me. (OP... If you don't want side discussions, I'll take this elsewhere.)
