The X6200HRT features both contact and telemetric heart rate monitoring, which control the four Heart Rate Training(HRT) programs - HRT Cardio, HRT Weight Loss, HRT Interval and HRT Hill. 5 preset programs, including the effective Sprint 8, and four custom programs make the X6200HRT the ultimate in programming options. The Bio-Radius pedal arms with articulating footplates and 19.75 inch stride length give the X6200HRT its superior motion, while the variable-durometer footpads give you a comfortable workout no matter how long you exercise.