I ran 5 miles in 48.21 for an average of 9:40 a mile. My average heart rate for the run was 141 BPM. It stayed pretty consistent throughout the run.
I have another 5 mile run scheduled for Thursday and I will be watching the heart rate throughout the run to see if I can keep it at a certain number.
I still really need some expert advice from some runners on where they train at within their Target Heart Rate.
Food And Exercise