Most athletes tell me something like this before they begin the ‘Ironman Marathon’ or run leg of an Ironman: “I’m going to start at 7:00/mile and hold on.” “If I feel good halfway, I’ll pick it up.” “I want to go hard from mile one to break my competition.” This kind of thinking…| 80/20 Endurance
Athletes bring their own definition of training zones to training plans or a coach. 80/20 Endurance explains the zones, plus Zone X and Zone Y!| 80/20 Endurance
You're probably already familiar with high-intensity interval training, but how hard do you have to push to really call it high intensity?| Cathe Friedrich