Exercise devices – Sit up device
Patent
1993-08-23
1995-12-12
Apley, Richard J.
Exercise devices
Sit up device
482142, 606240, A63B 2600
Patent
active
054745136
ABSTRACT:
In accordance with the present invention, there is provided a therapeutic exercise device having a polyhedral foam body. The body may comprise a bottom side, a front side, a rear side, a left side, and a right side for supporting a top side. The top side may include a sloping surface and a plurality of arcuate surfaces cooperating to properly support and position an exerciser's legs, pelvic region and spinal vertebrae system to develop and maintain the musculoskeletal system.
The sloping and arcuate surfaces comprise a first outward convex surface which has a first maximum vertical height for supporting and positioning a persons legs, the sloping surface interconnects the first outward convex surface with the inward concave surface and supports and positions a person's legs with a predetermined orientation, the inward concave surface has a minimum vertical height value and positions and supports the person's buttocks with a predetermined angular orientation, and a second outward convex surface has a second vertical height and varying radius of curvature values for supporting and positioning a person's spinal vertebrae system when it is arched over the surface. The maximum vertical height of the second outward convex surface is spaced from the inward concave surface to ensure that the spinal vertebrae system arches thereover.
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Carlesimo Michael O.
Ebey Charles P.
Apley Richard J.
Clark Jeanne M.
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