Undertaking
Patent
1983-01-20
1985-04-16
Apley, Richard J.
Undertaking
272134, 272144, 272DIG4, A63B 2106
Patent
active
045111375
ABSTRACT:
The machine disclosed is for particular use in the duo-squat exercising of the legs and provides the proper variation of resistance to movement in all positions when the legs are being moved between the extended and retracted positions and vice versa. The machine includes a negative profile cam to which the force is applied by the user and the negative profile cam has a different length radius (moment arm) at different degrees of rotation. A weight stack is supported by a flexible member reeved over a wheel which has a radius of uniform length and being fixed to rotate with the negative profile cam. The length of the longest radius of the negative profile cam is less than the length of the uniform radius of the wheel so that the amount of force applied by the user is greater than the amount of weight provided by the weight stack.
REFERENCES:
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York Excalibre-Bow & Arrow Magazine, Jun. 1982, pp. 20, 21, 22.
Apley Richard J.
Browne William R.
Nautilus Sports Medical Industries, Inc.
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