Patent ID: 7163497

Claim:
An exercise device attached to a conventional bed for exercising the trunk flexor and trunk extensor muscles, said device essentially consisting of: A first, second, and third attachable part, said first part including a rigid rectangular board with a first and second end, a first and second side, and a top and bottom designed and configured to support the lower trunk of a user; said board positioned on a top surface of said bed; Said second end of said board having a foam covered bar being adjustable both horizontally and vertically relative to said board for stabilizing the lower extremities of a user; Said top surface of said second end of said board having mounted thereon two guide clamps; Said bottom surface of said first end of said board having mounted thereon one guide sleeve; Said second part for stabilization of said rectangular board in both horizontal and vertical directions including a vertically adjustable post mounted on a rectangular base having a horizontal top beam; said top beam having an aperture for a first metal rod which passes through it and into said guide sleeve of said board; Said third part for stabilizing and aligning said board to said bed in a horizontal and vertical direction including a vertically adjustable post mounted on a rectangular base; said post having two sets of apertures for each of two metal rods; said rods being an upper second rod and a bottom third rod which pass through said apertures; said bottom third rod defined by a shorter length than said upper second rod; said bottom rod extending horizontally underneath said bed while said upper rod extending horizontally over a top surface of said rectangular board and through said guide clamps.