Quote Originally Posted by mr brightside View Post
So you'll deffo hit max HR off 3k flat out?

The main concern i have is that my HR does not increase proportionally with my breathing rate, but should i expect it to? The HR reading is slightly erratic, but i was told it would be so i can ignore this.

Well i believe that there's some difference between the definition of physical "max HR" and your maximum useable HR from a running point of view. But that is going beyond the (very limited) scope of my knowledge on the subject!

But yes a 3km race-pace corresponds very closely to max HR pace for running purposes (to the best of my understanding)