Originally Posted by recursive
All I know is, it's wrong.
Right before the calculator it says 110% of VO2max is 1500 metres to 800 metres speed. If you put that into the calculator, it reports this is 107% MHR. Obviously, this is a contradiction. Since it's not even consistent with itself, I don't reall trust what this formula says other than for gross estimates.
Well I believe that 100% VO2max is achieved at MHR. That just makes sense. Your body's ability to utilize oxygen is maximized at the highest rate at which your heart can beat. 110% is probably theoretical, some kind of sports physio talk. Maybe it has to do with some aerobic equivalent of anaerobic-ness.