The present invention provides support assembly having a resilient support frame having a ground engaging portion and an upper portion. The upper portion is moveable with respect to the ground engaging portion. A suspension assembly is coupled to the upper portion of the support frame such that motion of the upper portion imparts motion to the suspension assembly. In another aspect of the invention, the invention includes a seat supported on a resilient support frame having a ground engaging portion and an upper portion moveable with respect to the ground engaging portion. A mobile is coupled to the upper portion such that motion of the upper portion imparts a corresponding motion to the mobile.