Orangetheory Fitness is a one-of-a-kind, group personal training workout broken into intervals of cardiovascular and strength training that produce maximum calorie burn. Backed by science, the heart-rate-monitored, high-intensity interval training is designed to maintain a target zone that stimulates metabolism and increases energy. Fitness coaches lead each 60-minute session using a variety of equipment including treadmills, rowing machines, suspension training and free weights, getting heart rates in the target Orange Zone for the desired time to produce the Orange Effect. The result is more energy, visible toning and extra calorie burn after the workout. Orangetheory Fitness has been recognized on Entrepreneur's 2014 Franchise 500® list of the top franchises in the world.