Patent ID: 8678985

Claim:
A balance training and exercise device for use on a relatively flat support surface and consisting essentially of: a shallow, concave one piece disc terminating in a rim and having a concave upper surface adapted to support the feet or knees of a human user and a corresponding convex lower surface that is adapted to rest on the support surface and that defines in a central portion a convex partial substantially spherical shape of substantially uniform curvature on which the disc is supported on the support surface; a pad adapted to be placed on or mounted on the upper surface of the disc and is shaped to conform with the upper surface of the disc so as to substantially fill the volume of the concavity of the disc, wherein the pad has a substantially horizontal upper surface that is adapted to support the feet or knees of a user at or near the rim of the disc when the pad is placed within the disc, wherein the pad is made of a resilient foam that is compressible under the weight of a user but that otherwise maintains its integrity under the weight of a user, wherein the substantially horizontal upper surface is at or near the rim of the disc when the pad is mounted on the upper surface of the disc; wherein the disc and pad are formed to impart sufficient rigidity to the disc so that the disc maintains its rigidity so that the disc functionally maintains its curvature on the bottom surface thereof beneath the feet of the user so that the user can perform a balance exercise by wobbling from side to side, front to back and rotational movement on the convex lower surface of the disc in place or for translational movement of the disc across the support surface by wobbling to one side of the disc, twisting the disc forwardly or rearwardly and wobbling the disc to another side to move the disc forwardly or rearwardly.