Undertaking
Patent
1982-03-24
1984-08-21
Apley, Richard J.
Undertaking
272134, 272135, 272136, 272DIG4, A63B 2102, A63B 2104
Patent
active
044666136
ABSTRACT:
A portable quadriceps muscle exerciser includes a frame member on which a user sits with one buttock and thigh so that the lower leg dangles from the knee joint at the forward end of the device. Spaced bracket members project on opposite sides of the knee and pivotally support a pair of spaced arm members about a pivot axis which is substantially coaxial with the bending axis of the knee joint. The distal ends of the arm members are connected by a cross-piece which engages the patient's instep. One or more elastic straps extend between the frame member and the distal arm ends to resist rotation of the arms as the patient's leg is straightened. The location of the attachment of the straps to the frame member is adjustable to adjust the strap tension. In a preferred embodiment the frame member is a box into which all of the components can be pivoted for storage and which raises the patient's foot above the floor. The front wall of the box is secured to the straps and re-positionable to adjust the strap tension.
REFERENCES:
patent: 3120954 (1964-02-01), Apostol
patent: 3558131 (1971-01-01), Dragon
patent: 3664666 (1972-05-01), Lloyd
patent: 3893667 (1975-07-01), Snyder et al.
patent: 4204676 (1980-05-01), Givens
patent: 4254949 (1981-03-01), Brentham
patent: 4310154 (1982-01-01), Kauffman
"Taylor at Work", Washington Post, Jun. 21, 1972, p. D1.
Apley Richard J.
Biokinetics, Inc.
Coppens Chris
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