The Natural Running Network

Everything you’ve ever wanted to know about heart rate training (but were afraid to ask). Let’s face it, it’s complicated business to truly understand how, why and when as it relates to heart rate. Not to mention, knowing what heart rate you should be following for it to be effective for you! As it so… Read more → The post EVERYTHING YOU’VE EVER WANTER TO KNOW ABOUT… HEART RATE TRAINING appeared first on The Natural Running Network.