Exercise devices – Involving user translation or physical simulation thereof
Patent
1998-06-26
1999-03-02
Crow, Stephen R.
Exercise devices
Involving user translation or physical simulation thereof
482 52, A63B 2200
Patent
active
058763082
ABSTRACT:
An exercise machine is disclosed herein comprising: a frame; a lower crank mounted on the frame; a substantially identical upper crank mounted on the frame above the lower crank; a right moment arm pivotably connected to both upper and lower right crank arms; a left moment arm pivotably connected to both upper and lower left crank arms; a pedal pivotably connected to the bottom end of each of the moment arms; and right and left pedal connecting rods pivotably connected to right and left secondary crank arms, respectively, and to the right and left pedals, respectively. Simultaneous rotation of the lower crank in a forward direction and the upper crank in a reverse direction generates forward orbital motion of the pedals and flexion-type motion of the pedals, thereby simulating the movements of a user's feet during running and/or walking. The disclosed exercise machine may also provide for arm movements appropriate for running and/or walking. This may be achieved by an exercise machine further comprising right and left upper reciprocating arms with handles that are pivotably connected to the frame above the upper crank and coupled to the upper crank by arm connecting rods, so that rotation of the upper crank causes reciprocating motion of the arms and handles. Alternatively, an exercise machine may further comprise handles connected to the top ends of the moment arms. The simultaneous rotation of the upper and lower cranks generates reverse orbital motion of the handles.
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Alavi David S.
Crow Stephen R.
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