A support walker comprising a horizontal rail having multiple sides in opposing orientations as track surfaces for a tracking carriage which traverses the rail. The tracking carriage circumscribes the rail and has pairs of radially disposed rollers mounted at the interior surfaces of the carriage in positions such that the pairs of rollers are in opposing contact with opposing track surfaces of the rail. The tracking carriage is thereby restricted to parallel movement in relation to the rail, with minimal play in a radial direction. A restraining vest is coupled to the tracking carriage by straps which connect at front, back and side sections of the vest. The vest further includes rigid stays which assist in maintaining the patient in upright orientation during therapy.
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