Speaker

Evidence Quote

“what we expect from heart rate when you are fit or you are getting fitter is that your sub-maximal heart rate at a set pace so let's for arguments sake just use a six minutes a kilometer or 12 minute mile set pace and you will see your heart rate or sub maximal heart rate usually pretty consistent the fitter you get or the better your aerobic function over time you will generally start to see that sub maximal heart rate start to drop slightly and then stabilize”

Source