Patent ID: 8357077

Claim:
A method of using a physical fitness or rehabilitation apparatus comprising the steps of: providing a platform for use with an inflated structure, the platform having a top surface, a bottom surface, a plurality of handles, and an aperture sized to receive the inflated structure, the platform also having a generally planar cross-section between the top and bottom surfaces, the plurality of handles being located outside of the cross-section of the platform such that the plurality of handles is non-coplanar with the cross-section of the platform, the inflated structure having a top portion and a bottom portion, the top portion of the inflated structure extending above the top surface of the platform and the bottom portion of the inflated structure extending below the bottom surface of the platform when the inflated structure is received in the aperture of the platform; and gripping the plurality of handles with a user's hands while the user's feet and the bottom portion of the inflated structure are positioned on the ground.