Abstract: An exercise machine that simulates the movements made during snow skiing to exercise the muscles used during such movements includes a pair of elongate foot support arms with foot support portions mounted for simultaneous vertical and horizontal movement with the vertical movement having opposite orientations for the same direction of horizontal movement. Thus, as the foot support portions of the foot support arms move in the same horizontal direction to one side or the other, one foot support portion moves vertically upwardly while the other moves vertically downwardly so that such movement generally defines an X pattern. Movement of the foot support arms is preferably coordinated so that the arms move together in a desired manner with resistance to movement of the arms preferably being adjustable by a user of the machine to adjust the strenuousness of the exercise performed.