A method of using a collapsible exercise device, comprising: providing a collapsible exercise device including a vertical support member, an adjustable incline (230, 240) having a first end and a second end, the first end of the adjustable incline pivotally coupled to, adjustably supported by, and vertically movable with respect to, the vertical support member for adjusting the incline of the adjustable incline, a user support platform movably attached to the adjustable incline (230, 240), first and second combination pulley-support and pull-up bars each pivotally connected to the first end of the adjustable incline for movement between at least a substantially vertical position and a substantially non-vertical position, first and second pulleys movably connected to the first and second combination pulley-support and pull-up bars for movement of the pulleys to a desired location, and one or more cables extendable through the first and second pulleys and connected to the user support platform for movement of the support platform along the adjustable incline (230, 240) through cable movement, wherein the exercise device is foldable such that the vertical support member and the adjustable incline are substantially parallel to each other when collapsed; positioning the first end of the adjustable incline (230, 240) at a desired height with respect to the vertical support member so that the adjustable incline is at a desired inclination; moving the first and second combination pulley-support and pull-up bars to a desired position; moving the first and second pulleys connected to the first and second combination pulley-support and pull-up bars to a desired location; moving the support platform along the adjustable incline (230, 240) through cable movement through the first and second pulleys on the combination pulley-support and pull-up bars. providing a collapsible exercise device including a vertical support member, an adjustable incline (230, 240) having a first end and a second end, the first end of the adjustable incline pivotally coupled to, adjustably supported by, and vertically movable with respect to, the vertical support member for adjusting the incline of the adjustable incline, a user support platform movably attached to the adjustable incline (230, 240), first and second combination pulley-support and pull-up bars each pivotally connected to the first end of the adjustable incline for movement between at least a substantially vertical position and a substantially non-vertical position, first and second pulleys movably connected to the first and second combination pulley-support and pull-up bars for movement of the pulleys to a desired location, and one or more cables extendable through the first and second pulleys and connected to the user support platform for movement of the support platform along the adjustable incline (230, 240) through cable movement, wherein the exercise device is foldable such that the vertical support member and the adjustable incline are substantially parallel to each other when collapsed; positioning the first end of the adjustable incline (230, 240) at a desired height with respect to the vertical support member so that the adjustable incline is at a desired inclination; moving the first and second combination pulley-support and pull-up bars to a desired position; moving the first and second pulleys connected to the first and second combination pulley-support and pull-up bars to a desired location; moving the support platform along the adjustable incline (230, 240) through cable movement through the first and second pulleys on the combination pulley-support and pull-up bars.