An exercise apparatus including a frame having a front portion and side portions, independently movable foot platforms connected to the frame, the foot platforms being movable in at least fore-aft and lateral directions, each of the foot platforms comprising a carriage and a movable portion, the movable portion being configured for elevational movement with respect to the carriage so as to provide a variety of exercises involving independent leg motion in any one, two or three axes and independently variable generally opposing resistance modules connected between the foot platforms and the frame where the variable resistance modules are configured to independently control elevational travel of the movable portion and fore-aft, abduction and adduction movement of the foot platforms and are conveniently adjustable during or before use.