Patent ID: 7901338

Claim:
An exerciser comprising: a frame assembly; a movable body support disposed on said frame assembly and constructed and arranged to support the seat and back of an exercising person in a supine position which allows the body of the exercising person while in supported relation to move with the movable body support with the feet of the exercising person to be free to be moved with respect to said movable body support; and a movable foot assembly coupled to said frame assembly and constructed and arranged to be engaged by the feet of the exercising person supported on said movable body support, said movable foot assembly including an elastic structure and a damper structure, said movable body support being mounted on said frame assembly for movement in a first direction away from said movable foot support and a second direction toward said movable foot support and being constructed and arranged to absorb the energy of a movement thereof in the first direction by a user supported thereon and to convert the absorbed energy into a movement thereof with the user supported thereon in said second direction; and said movable foot assembly being constructed and arranged to yield resiliently with a damping action by the damper structure in response to the engagement of the feet of the exercising person moving with the movable body support in said second direction and to establish, as a result of the damped resilient yielding, a resiliently damped return movement by the elastic structure in said first direction which can be translated by the exercising person into a movement of said movable body support in said first direction.