An exercise device accommodating leg thrust exercises is shown and described. The device provides a flat, nominally planar base or frame on which are mounted two slide members riding in parallel, linear tracks. Each slide is coupled to the frame by an elastic tether. A hand grip bar spans right and left sides of the frame at one end thereof. In use, a person grasps the hand grip bar, and places each foot on one of the slide members. The user then pushes with either one leg or alternatively, with both legs, against the resistance of the elastic tether.