Patent ID: 7604580

Claim:
An exercise device, the device useful by a human being, the device comprising: (a) saddle, the saddle comprising a saddle surface having a convex curved surface and a slidable attachment configured for supporting at least a sacrum of a spine of the human being in an ascending orientation, and supporting at least three thoracic vertebrae of the human being in a descending orientation, and the curved surface positioned to partially support a plurality of vertebrae while the human being contracts a plurality of abdominal muscles; (b) a base, the base affixed to the saddle slidable attachment and the base operable to stabilize the saddle when the saddle is supporting the sacrum during an exercise movement by the human being; (c) an adjustable knee bar, the knee bar adjustabley coupled with the base and comprising a positionable rest and leverage arm for partially supporting at least one leg of the human being; and (d) an adjustable foot bar, the foot bar adjustabley coupled with the base and the foot bar positionable relative to the knee bar, wherein the body of the human being is fully supported by the convex saddle surface, the knee bar and the foot bar.