Your NordicTrack Treadmill stands the test of time with innovative design elements and expert engineering. Use your treadmill to go farther than you ever have before when you add NordicTrack Interactive personal coaching experience with IFIT. Get heart-pounding studio workouts and trainer-guided workouts around the globe so you can run the steps of Machu Picchu in the morning and the beaches of Hawaii in the afternoon. Always have confidence in the lasting power of your machine with lifetime frame and motor coverage. Continuous Horsepower (CHP) is a term used in the treadmill industry for consumer comparison purposes. The CHP rating is measured in laboratory testing using a dynamometer, which measures the mechanical power of the motor. The CHP rating does not denote the operational horsepower of the treadmill in ordinary household use. In ordinary household use, the motor does not operate at the horsepower shown.