| 摘要 |
A device that exercises the shoulder and forearm is disclosed. The device is fabricated with a handle attached to a square tubular shaft that telescopes in and out over a smaller square tubular shaft. The smaller tubular shaft is attached to a round shaft with a sprocket attached. A first link of a small length of linked chain is attached to a tooth of the sprocket. A second link of the linked chain is attached to a first end of a wire cable. The wire cable passes under one pulley, then up and over two other pulleys and then is removably attached to one or more weights. By adjusting the total weight of the weights, the resistance of the device is controlled. By grasping the handle and turning it clockwise or counterclockwise, a person exercises the shoulder and/or forearm.
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