A true direction change involving the feet moving in a new direction requires either a "prep step" or a "pivot", both of which are sometimes referred to as a "flank" or “stab”. To perform a prep step, on the last count of movement in the first direction a marcher plants the foot with the heel turned outward at half the angle of the turn desired, with the upper body still facing forward. On the next count, the other foot snaps into position completing the turn. The upper body may or may not turn with the lower body. Some bands plant the heel on the prep step rather than the toe but preserving the angle of the foot. To perform a pivot, the marcher pivots between directions over the ball of the foot on the last count instead of using a prep step.