Energy Lab Blog QOTW: How Should I Use My Heart Race and Pace Zones in The Heat of Summer

Unless you've taken a running hiatus, you've noticed that it's summertime, it's hot, and running is lot tougher right now at a given pace! If you've set your running heart rate and pace zones in the past then read on. If not, visit Joe Friel's Lactic Threshold Heart Rate primer and make sure you're using accurate zones as a starting point....Read more