The StairMaster 4000 PT is a vertical climbing machine with an independent step action that provides an aerobic workout equivalent to uphill running or climbing stairs, but without the high-impact pounding to the joints and muscles.
Stairway provides a self-paced, low-impact stair climbing exercise. The waist belt determines your speed so, the higher you go, the faster the steps come. The lower you go, the slower they come. If you want to stop, just stop climbing and Stairway comes to a stop.