DESC: Features Full 8” step requires complete stairclimbing motion. Patented design ensures safes, biomechanically correct movement. Electronic braking mechanism precisely controls the speed of the drive system for a continuous, rhythmic climbing speed. Revolving staircase speed may be varied from 30-156 steps per minute. Motivating programs include a nationally recognized fitness test to gauge your progress. Computer console motivates you throughout your workout by giving elapsed time, calories burned, miles traveled, floors climbed, step rate, relative exercise intensity (METs), and power output (watts) for workout-to-workout comparisons. Includes Polar® Heart Rate monitor capability.