Abstract: An infant training walker has a base platform, a disk-shaped tread member rotatably supported approximately flush therewith, and a belt-shaped restraint spaced above the platform in eccentric relation to the tread member for laterally restraining an occupant of the walker. Preferably, a seat element having leg openings depends from the restraint, and the restraint is rotatable within a tray having an array of toy elements. Thus the occupant is encouraged to exercise in a variety of angular orientations relative to the tread member. The occupant can walk with both feet on the tread member, and can also keep one foot on the platform while moving the other foot on the tread member. The tray is adjustable in height, being supported from the platform on telescoping legs. A vertically extending seat back attachment can augment a back-supporting portion of the restraint when the walker is used by larger toddlers.