A manipulating assembly for a spinal therapy device comprising a first manipulating member 10 engaging a spine at a first vertebral area between a spinous process and a transverse process on a first side of a spine and a second manipulating member 15 is arranged to engage the spine at a second vertebral area also on the first side. The first and second manipulating members are coupled together 45 at their proximal ends to permit them to be driven simultaneously and motion relative to one another in an axial direction. There may be a single actuator 65 and a spring 40 to resiliently bias the members in position. A manipulating assembly may be located on the other side of the spine and mounted in tandem with the first on a Y shaped bracket 30 which is height adjustable via locking slots 80. Also claimed is an assembly with manipulating members on either side of the spine driven simultaneously and independently, a spinal therapy bed comprising a plurality of manipulating assemblies and drive and control systems which activate adjacent assemblies spread along different distances on the spine. Methods of use and the control system are also claimed.
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