Distortion or impairment of voluntary movement. This term is much more appropriate than " Vertebral Subluxation" or " Vertebral Subluxation Complex". NOTE: The reason for the change in terminology is to take the focus off of a supposed cause. FACT: The vertebrae do not rest upon each other directly, instead there is a soft cushion of tissue called the intervertebral disc that acts as a shock absorber and allows for a discrepancy in the alignment of the spine. Our philosophy emphasizes the proper force necessary to correct the true subluxations first, then, and only then to encourage a broader range of movement in the spinal column in order to facilitate rehabilitation. See Contract.