Still pretty new to the forum, but have been primal for about a month now, and have been taking a break from running and cycling to adjust. Getting back into it, what is the protocol for transitioning from a sugar-burner runner/cyclist to a fat burner runner/cyclist?

Are you glued to your heartrate monitor? do I need to slow way way down to be a fat burning endurance athlete?

Or, as a fat burner in most of my day, will it carry over to exercise regardless of heartrate?

Any experience any one had would be great,

Thanks in advance,