I've started running a couple of months ago. I'm 27, average height and normal weight. However it seems that no matter how slowly I run, my heart rate quickly climbs into the Max Effort zone of 170-180.
My GP checked me out before I started, and I recently had an ECG taken - everything was fine.
After I learned to run just a tad faster than walking pace (it's tricky!) I can keep the HR in 170-175 and run like this for 45 minutes or so.
Is this me simply being extremely unfit? :) Is it likely to improve if I keep running in this zone? I can't really run any slower, and fast walking at the same speed gets me an HR of 125, which I also don't feel will improve my fitness unless done for several hours a day.