Exercise machine with leverage arm

Details Exercise machine with leverage arm Exercise machine with leverage arm

2006-07-04

2006-07-04

Donnelly, Jerome (Department: 3764)

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing weight resistance

C482S072000, C482S080000, C482S098000, C482S104000, C482S140000, C482S137000

Reexamination Certificate

active

07070543

ABSTRACT:
An exercise machine utilizes the inherent capabilities of human muscles to exert greater forces during eccentric functions than during concentric functions. The exercise machine comprises a leverage arm pivotally connected to a frame. A force station is at a first distance from the pivotal connection. During a concentric muscle function, a person lifts first weights on the leverage arm. At the end of the concentric muscle function, a spotter applies a small force to the leverage arm at a second distance greater than the first distance from the pivotal connection. The small force produces a magnified load at the force station that the person resists during an eccentric muscle function. The leverage arm may be adjustable relative to the floor. The weight of the leverage arm may be counterbalanced. Various embodiments of the exercise machine utilize the same principles of physics for exercising different muscles.

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Nebula Fitness Equipment by Proto Weld inc., Seated Calf # 6070, catalog received at PTO Sep. 1995.

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