Undertaking
Patent
1988-04-25
1989-04-18
Apley, Richard J.
Undertaking
272125, A63B 2124
Patent
active
048220361
ABSTRACT:
A resistance generator of a physical exercise apparatus generates a resistance that is the sum of two components: Isotonic and Isokinetic resistances; wherein the Isotonic is independent of motion speed and the Isokinetic increases with motion speed when the motion speed exceeds a preselected level. The Isokinetic component contains the user's exercise motion to an optimum speed range and provides resistance up to the user's maximum capacity. The Iostonic component insures a minimum resistance throughout the range of motion.
REFERENCES:
patent: 3848467 (1974-11-01), Flavell
patent: 4479647 (1984-10-01), Smith
patent: 4601468 (1986-07-01), Bowd et al.
patent: 4765315 (1988-08-01), Krukowski
Apley Richard J.
Cheng Joe H.
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