Patent ID: 7645221

Claim:
An exercise device, comprising: a base, said base having an undersurface for placement on the floor and having an upper surface; a plurality of springs, each of said plurality of springs having a first end and a second end; an exercise platform, said exercise platform having a top surface for engagement by the user and having an undersurface; each of said plurality of springs being affixed at said first end to an upper surface of said base and at said second end to an undersurface surface of said exercise platform said exercise platform being substantially parallel to said base when said exercise device is not in use, said springs being a sole support for said platform; a plurality of flexible unitary straps, each of said straps having a first end and having a second end, each of said straps having said first end connected to said upper surface of base and said second end connected to said undersurface surface of exercise platform, said straps being sized and positioned so that they are in tension when there is no external load on said platform to stabilize the balance of said exercise platform; a socket mounted on said top surface of said base, a one-piece safety handle mounted in said socket, said one-piece safety handle having a top and having a cross bar formed in a T-bar shape so that the user of said exercise device can stand on said exercise platform and hold said handle for safety and support; and said plurality of springs and said straps being the sole constraints of said platform so that said springs and said straps allow the position of said exercise platform to vary relative to said base as weight is applied to said exercise platform at different points away from a center point of weight balance.