04407496 is referenced by 37 patents and cites 6 patents.

An exercising device for use in strengthening, conditioning and rehabilitating body joints such as the knee and shoulder. The device is used in connection with conventional exercising apparatus to minimize detrimental shearing forces on the joint during the exercise procedures. This is accomplished by replacing the conventional single contact pad on the limb with two contact pads or pad and handgrip mounted on a variable fulcrum that will produce the desired counterforce to the shearing force on the joint.

Title
Limb exercise device
Application Number
6/330141
Publication Number
4407496
Application Date
December 14, 1981
Publication Date
October 4, 1983
Inventor
David E Johnson
Apt. 101, 2900 Autumn Dr., Dubuque, 52001
IA, US
Agent
James C Nemmers
IPC
A63B 21/06
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