The physiological theory behind the Orangetheory workout is known as “Excess Post-Exercise Oxygen Consumption,” or EPOC. By providing you with a heart-rate monitor and POD, we can monitor your 5-zone interval training sessions that we call the Orange 60. During the 60-minute workout, you will perform multiple intervals designed to produce 12 to 20 minutes of training at 84% or higher of your maximum heart rate, which translates to Zones 4/5. This program design produces workout “afterburn” effect, which is an increased metabolic rate for 24 to 36 hours after the workout. When combining the amazing workout with EPOC, our clients burn an average of 500 to 1000 calories.