Abdominal exercise device

Details Abdominal exercise device Abdominal exercise device

1990-12-03

1991-12-10

Apley, Richard J.

Undertaking

272141, A63B 21008

Patent

active

050711199

ABSTRACT:
An exercise device for exercising abdominal muscles and lower back muscles without putting undue stress on lumbar and cervical spinal discs and without over-exercising the hip flexor muscles is for use by a person sitting on a chair. The device includes a pushbar supported on a vertical column including a compression spring means. This column is supported on the floor. The person exercising sits with his or her chin at the height of a horizontally positioned pushbar, puts his or her arms over the pushbar and performs a trunk curl against the resistive force of the spring. The exerciser curls his trunk against the resistive force, holds it for a second, twists to the right and left, and then very slowly allows the resistive force to push the trunk upward to resume the original upright position.

REFERENCES:
patent: 2494094 (1950-01-01), Horstman
patent: 4211404 (1980-07-01), Blowsky et al.
patent: 4824105 (1989-04-01), Goldenberg
patent: 4834366 (1989-05-01), Hotchkiss
patent: 4863162 (1989-09-01), Neckamm et al.
patent: 4865317 (1989-09-01), Hickey
patent: 4951941 (1990-08-01), Resk

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