An exercise device includes one or more foot supports movable along an
arcuate path defined around a point of rotation. The arcuate path is
divisible into machine defined user selectable arc segments and the
movement of the foot support(s) is limited to the machine defined user
selected arc segment. The exercise device can include a frame, a linkage
movably engaged with the frame, a foot support movably engaged with the
linkage, a crank arm movably engaged with the frame, a motor operative to
move the crank arm location with respect to the frame, and a drive
linkage movably engaging the linkage.