Patent ID: 6955635

Claim:
An exercise apparatus, comprising: a) a body having a top surface, a bottom surface, a left side and a right side, the body having i) a curved first section located at one end of the body of the device and, in use, is adjacent to the lower back area of a user, ii) a curved second section located toward the center of the body of the device, and, in use, is adjacent to the middle back area of the user iii) a curved third section located at the distal end of the body of the device and, in use, is adjacent to the upper back area of the user; b) at least one cam member associated with at least said curved third section, extending downwardly from said bottom surface of said body, and situated under the upper back area of the user; c) a first shoulder member extending upwardly from the top surface of the curved third section on said left side of said body and, in use, contacting a first shoulder of the user; and, d) a second shoulder member extending upwardly from the top surface of the curved third section on said right side of said body and, in use, contacting a second shoulder of the user; the first and second shoulder members engaging the shoulders of the user, thereby preventing the user from sliding longitudinally along the body of the device when the user is causing the device to rotate along the cam member so that the curved first section is elevated.