Abstract: An abdominal exercise device to assist in exercising all three abdominal muscles includes a platform which is placed on a flat supporting surface. A substantially U-shaped body cage is pivotally mounted on the platform and extends outwardly therefrom and includes a U-shaped neck and head support portion and a pair of platform connecting portions adjustable connected thereto. A padded cushion mounted on the support portion supports the head of the user. A pair of pivot members pivotally connect the body cage to the platform. Each pivot member includes a cylindrical portion for pivotally rotatably mounting the body cage to side walls of the platform, and a semispherical portion which connects to free ends of the body cage. A user reclines on the platform and grasps the body cage and performs a sit-up type of motion with the body cage ensuring a full range of motion in the proper plane of movement to maximally recruit the abdominal muscles.

Abstract: This invention relates to an improved adjustable exercise device for use in step benching which utilizes a combination of a two-piece bench step providing both a lower riser step as well as a higher riser step, the two units having an interlocking feature and lightweightness for a stable broad non-slip load-supporting surface which may be approached from any direction and may be readily assembled and disassembled as desired. The step heights may be varied between the 4 inch and 6 inch step heights which are preferred for the several most desirable levels of step benching. In a modified embodiment another base member is innerlocked with the two-piece bench to increase the vertical height of the top support surface.