Sit-up exercise device

Details Sit-up exercise device Sit-up exercise device

1988-03-07

1989-03-07

Apley, Richard J.

Undertaking

272900, A63B 2302

Patent

active

048099716

ABSTRACT:
An exercise device for assisting a person in doing sit-ups correctly and easily. The device includes a piece of plastic which is folded to fit around and under a door, and a pair of foot rests hinged to the piece of plastic. The hinge is spring-loaded such that the foot rests are biased to a position against the piece of plastic.

REFERENCES:
patent: 1905019 (1933-04-01), Turner
patent: 3524643 (1970-08-01), Hazelitt, Sr.
patent: 4182510 (1980-01-01), Lundell
patent: 4378939 (1983-04-01), Wild
patent: 4611805 (1986-09-01), Franklin et al.

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