1986-10-27
1988-07-26
Apley, Richard J.
Undertaking
297DIG3, 297284, A63B 2100, A47C 300
Patent
active
047595434
ABSTRACT:
A passive exercise cushion for alleviating and preventing back pain includes a plurality of air inflatable component members encased within a fabric covering. The covering includes a strap member for securement to a backrest of a chair. A pillow member within the casing is positioned in confronting relationship for cradling the back when sitting in the chair. A support mat within the casing provides cushion firmness. A pouch placed between the pillow member and the support mat is adjustably positionable at preselected areas, the locus of which extends between the lower limit of the scapula and the fourth lumbar vertebrae of the back. The volume of air within the pouch is controlled so that when the reclining back assumes a comfortable position in the chair, a forwardly directed force is exerted by the pouch. Bodily equilibrium is passively maintained by counterbalancing contraction of the muscles supporting the spinal system and thus provide a strengthened and conditioning action.
REFERENCES:
patent: 3145054 (1964-08-01), Sopko
patent: 3495871 (1970-02-01), Resag et al.
patent: 3778851 (1973-12-01), Howorth
patent: 4108492 (1978-08-01), Kirby
patent: 4516568 (1985-05-01), Baxter et al.
patent: 4534593 (1985-08-01), Ojala
Apley Richard J.
Crow S. R.
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