In skating, the step is slipped – that is to say in motion – and the propulsions are lateral which requires ability to hold several seconds on a single ski in unipodal balance as well as to maintain that balance in motion while gliding. The six different kinds of steps – 2-stroke skater step, 2-stroke combined skater step, 1-step skater step, alternate step, stickless skater step, half skater step – are adapted to the slope variations.