You step up onto it......then you step down off of it.
Sounds like a challenge you would like to attempt?
Comes with comprehensive 8 hour video demonstrating the proper technique.
For those without a computer.....there is a 678 page guide book.
For the quick learners out there.......( and you know who you are)..............................some girl on you tube has a 10 second video that can save you some time.