Exercise devices – For foot or ankle – Foot pedal pivots about single horizontal axis
Patent
1997-08-29
1999-11-09
Apley, Richard J.
Exercise devices
For foot or ankle
Foot pedal pivots about single horizontal axis
601 29, A63B 2308
Patent
active
059804335
ABSTRACT:
The invention provides a calf exerciser which safely duplicates the desirable aspects of stair-edge toe lifts. The present exerciser allows a user to transition from a fully contracted position (a "tip-toe" stance) to a fully extended position (much as if one's heels were dropped below the level of the stair on which one rests his or her forefoot to the extent allowed by the exerciser's flexibility). A pivoting forefoot plate pivots with the user's forefoot as he or she transitions between the extended and contracted limits of the toe lift cycles. This eliminates the presentation at any phase of the exercise cycle of a sharp edge (like a stair-edge) to the foot, as well as insures that the user's forefoot (or corresponding shoe portion) remains squarely and safely in contact with a stable surface, despite inherent rocking motion of the feet during each toe lift cycle. The forefoot plate is biased toward the position for the extended phase of a toe lift exercise, so that the transition through the exercise is smooth and safe, and to provide a bit more resistance when transitioning toward the contracted phase of the exercise.
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Apley Richard J.
LaMarca William
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