Heart rate formulas, how reliable are they? | Physical and Mental Health - Exercise, Fitness and Activity | Scoop.it
I have been a bit of a runner for most of my life. Where I grew up in the Highlands of Scotland there was plenty of cross country running tracks to be explored. Of course that was mixed in with mountain biking, fly fishing, kayaking, sailing, football, hiking, rock-climbing… you get the picture. I have…