Abstract: A device for simulating skiing, walking and running with adjustable resistance comprising a base plate positionable in a horizontal orientation having an upper surface and with parallel longitudinal slots formed therein, foot supporting receptacles adapted to receive the feet of a user on the upper surface thereof with mechanisms beneath the lower surfaces thereof extending through the slots to allow for the forward end rearwardly shifting of the receptacle and feet of a user and with liftable mechanisms interconnecting the upper and lower surfaces of the receptacles, a support plate in a vertical orientation having an upper edge and a lower edge, the lower edge coupled to the forward edge of the base plate, a plurality of weights coupled with respect to the vertical support plate with a key to vary the amount of weights to be coupled for being lifted as a function of the desire of the user, flexible coupling interconnecting the lower extent of the foot receptacles with the weights, the coupling being separab