| 摘要 |
A traction device in which the user himself applies the traction force. A harness runs under the user's body to the dorsal and lumbar region thereof. A strap is attached to the harness and is used to apply traction thereto, the opposite ends of the strap being attached to the ends of a traction bar. The traction bar has attachment means at its center and to the left and right of center, a line or cable being selectively attached to one of these attachment means. This line fits through a suitable fitting and is attached to a force indicator device which is within the user's view. A line runs from the indicator device to a force input drive member adapted to be engaged by the user's feet or hands. In using the device, the user applies the desired amount of force to the force input drive member, as indicated on the indicator device, this force being delivered to a selected portion of the user's back through a suitable applicator member.
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