 When used as a prep for a move, the degree of rotation depends on how much tension must be built up in the connection between the dancers in order to properly execute the move.Sometimes the terms "rock step" and "break step" are used interchangeably e.g., "Forward Rock" and "Forward Break".The stylistic difference is that in the "rock step" the emphasis is in the rocking action during the step, while the term "break" carries the meaning of the change of the direction into the opposite, i.e., the "forward break" changes the direction of the movement from forward to backward.