Exercise devices – Isometric
Patent
1991-04-26
1992-05-26
Apley, Richard J.
Exercise devices
Isometric
482131, 482903, 482900, 128 25R, 128 25B, 602 26, A63B 2102
Patent
active
051162962
ABSTRACT:
The present invention is an ergometer for isometrically exercising one or more leg muscles of a patient undergoing rehabilitation of the knee joint following knee ligament surgery. The ergometer has an upper leg restraint and a lower leg restraint which are positioned on the leg above and below the knee respectively. The leg restrains are maintained in a fixed position relative to the leg by a rigid crossbar and a bolster positioned behind the knee. Exercise of the hamstring or quadriceps muscles is performed by isometrically contracting the desired muscles while the knee is at an extension angle which does not stress the ligament under repair. Muscle contraction can be artifically induced by an electrical stimulator, which in concert with a closed-loop control system, effectively regulates the exercise level.
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Daniels Dale M.
Watkins K. Richard
Apley Richard J.
MEDmetric Corporation
Reichard Lynne A.
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