A four bar apparatus and method are provided for lifting, lowering, providing exercise and facilitating self-propelled transit. The apparatus includes an actuator and interconnected four-bar lifting mechanism, which includes a crank, a coupler, a rocker, and a frame. Each of the crank, coupler, rocker and frame are rotatably interconnected, and operation of the actuator moves a lift point of the coupler, with the lift point connectable to a vest-type garment or belt worn by a user of the apparatus, with the lift point following a J shape path or an S shape path to lift the user from a shoulder or hip area, respectively.
