Patent ID: 8641588

Claim:
A resistance chair for exercising a user's core and abdomen comprising: an elevated stationary seat comprising a front edge and a back edge; a front support leg connected adjacent to the front edge; a rear support leg connected adjacent to the back edge, wherein the front and rear support legs space the elevated stationary seat above the ground; a first arm rotatably engaging the back edge of the seat and rotatable to a position below horizontal with respect to the elevated stationary seat; at least one back support secured to the first arm and supporting the back of a user sitting on the elevated stationary seat; and at least one resistance element connected to the elevated stationary seat and a roller, wherein the roller is movable horizontally on the ground, and wherein the at least one resistance element provides vertical and horizontal resistance forces to the elevated stationary seat; and an adjustable hinge attached to the first arm, the adjustable hinge being movable between fixed locations along the first arm; wherein the at least one resistance element urges the first arm to an upright start position and assists a user performing an abdominal crunch to return to an upright abdominal crunch position from a fully extended abdominal crunch position with the first arm reclined below the elevated stationary seat; and wherein the at least one resistance element resists rotation of the first arm away from the upright start position and resists against the user moving from the upright abdominal crunch position to the fully extended abdominal crunch position with the first arm below the elevated stationary seat.