WHAT DO THE 5 ZONES MEAN, AND WHY IS THE ORANGE ZONE SO IMPORTANT?

Orangetheory Fitness is a 5-zone heart-rate-based interval training class which includes both cardio and strength training. During a class, members focus on Zones 3 (challenging but doable), 4 (uncomfortable), and 5 (all out/sprint effort). These zones are individually calculated for each Orangetheory Fitness member. The classes are designed to produce 12 minutes or more in Zones 4 (orange) and 5 (red) combined during the workout. The goal of this is to achieve EPOC. (Excess Post-Exercise Oxygen Consumption).