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Exercise Devices

Progressive-accommodating-resistance-exercise-device

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Progressive accommodating resistance exercise device

Details

Inventors: Moschetti, Mitchell R.; Smith, Jeffrey J.; Hollander, William;
Assignee:
Primary Examiner: Apley; Richard J.
Assistant Examiner: Reichard; Lynne
Attorney, Agent or Firm:

The present invention relates to a progressive accommodating resistance exercise device including a retractable cable, resistance means for providing a resistance force opposing extension of the cable such that the resistance force is a function of the speed of cable extension for all resistance forces having a magnitude greater than the fixed cable retraction force, and adjustment means for varying the relationship between the resistance force and the speed of cable extension for all resistance forces greater in magnitude that the fixed cable retraction force. Means are also disclosed for minimizing the likelihood of joint hyperextension during use.

DETAILED DESCRIPTION The present invention relates to a progressive accommodating resistance exercise device including a retractable cable, resistance means for providing a resistance force opposing extension of the cable such that the resistance force is a function of the speed of cable extension for all resistance forces having a magnitude greater than the fixed cable retraction force, and adjustment means for varying the relationship between the resistance force and the speed of cable extension for all resistance forces greater in magnitude than the fixed cable retraction force.
The invention is advantageous over conventional devices for a number of reasons.
For example, the resistant force is reduced to the negligible cable retraction force when the user ceases movement, such as when extension is complete or stopped because of fatigue.
"Spotters" are therefore not required, and the likelihood of injury is extremely reduced.
The resistance means for providing a resistance force opposing extension of the cable such that the resistance force is a function of the speed of cable enables exercise to be performed at high speed without the disadvantages associated with inertia of the free weights.
Moreover, the adjustment means for varying the relationship between the resistance force and the speed of cable extension enables the device to be adjusted to suit the needs of individual users.
These and other advantages will become apparent to the reader upon review of the description set forth below.

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