Patent ID: 9446276
Filing Date: 2016-09-20
CPC Classification: A63B

Claim Text:
1. An exercise device to assist a person in the performance of abdominal crunches and exercises, wherein said person has buttocks and a back, said exercise device consisting of: a) a first member that supports the buttocks wherein said first member lays flat on a floor or other essentially planar surface, wherein said first member comprises a top surface having a top length and width, a bottom surface having a bottom length and width, and a plurality of edge surfaces each having a height that is the same on every edge, and further wherein: such that when the device is laying on an essentially horizontal surface, the person's buttocks rest directly upon the top surface at a height that is essentially not greater than the heights of the plurality of edge surfaces; b) a second member that supports the person's back, wherein the second member is hinged only to the first member, and further comprises at least one soft support pad; c) at least one hinge connecting the first member to the second member; d) at least one removable and replaceable spring having elasticity, which is attached only to said first and second members: wherein the elasticity of the at least one removable and replaceable spring is selectable so as to provide variable back support.