Does Heart Rate Matter?
So I have been running for about 4 or 5 months now. Started with C25K and now run in 2.5K a few weekends a month and working up to competing in a 5K by the years end. My question is how much focus should I put on heart rate? Up until now it has been a non factor as I run until tired and then stop or adjust my pace but I see for some it is one of the main factors dictating their pacing etc. Very much appreciate any advice.