An aspect of the invention involves a method of using a collapsible exercise device including providing a collapsible exercise device; positioning a first end of an adjustable incline at a desired height with respect to a vertical support member so that the adjustable incline is at a desired inclination; moving first and second combination pulley-support and pull-up bars to a desired position; moving first and second pulleys connected to the first and second combination pulley-support and pull-up bars to a desired location; and moving a support platform along the adjustable incline through cable movement through the first and second pulleys on the combination pulley-support and pull-up bars.