There are other factors to consider as well... Do you have an irregular heart rhythym? HR monitors give your HR after so much time is elapsed and multiplies it by whatever to get to a minute. If it fluctuates greatly then that is probably your answer.
Edit: So what I am saying is that if it calculates your HR every 3 beats then you may have 4-5 beats consecutively then hit a pause have 2-3 beats spaced further apart then back to the fast beats again.
On the other hand, I am very fit and I have a comfortable HR of 200+ when I exercise. I know it sounds bad, but everyone is different.
Last edited by biker2011; 07-07-08 at 07:32 PM.