| 摘要 |
A seating system for providing spinal motion and support. Said system comprising a substantially static structure adjacent to the back of a user, a moving apparatus supplying a motive force, wherein the moving apparatus is adjacent to the buttocks and thighs of the user and is powered by the lower extremities of the user, a force applying means disposed between the static structure and the back of the user, the force applying apparatus including a back engaging surface for increasing and decreasing a force applied to the back of the user in response to the supplied motive force, and a means for locking the moving apparatus in place. Various embodiments of moving apparatus, force applying means, and locking and/or motion limiting means are presented.
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