After a 2 months break from road running due to injury, in fact, any running, I have just been out and done a 2.5 miler which included a large hill. My time was 23min, and I by no means pushed myself. HR according to my Polar HRM was: Max 195 (101%) Average 180 (92%) Does that seem a little too high? I was not blowing out my arrse, I felt steady if you know what I mean. My only training has been 60mins around 5 days per week on a cross trainer.