When Negative Is a Positive
Much like gauging the air pressure in a car tire, scientists can use sensors to measure the various pressure put on spinal discs while lifting, standing, sitting, lying down, undergoing traction, and undergoing NSSD. Like other pressures found in the body such as blood pressure, intradiscal pressure is measured in millimeters of mercury (mmHg).
While traction, physical therapy, and manipulation may reduce disc pressures to as low as 40mmHg, only NSSD has been shown to achieve negative pressures within the spine. It has been clinically proven that NSSD creates negative pressures as low as -160mmHg within the injured disc during the treatment session!
Decompression Goes Beyond Normal Traction
With traction, weights are steadily added to the end of the traction bed, which, in turn, adds tension to a harness secured around the patient’s pelvis, lengthening the spine. The intention is to relieve pressure, but the linear force can instead produce spasming, which may lead to greater injury.
A 1997 study compared a traditional mechanical linear traction device to a Non-Surgical Spinal Decompression device. The traction device yielded no positive results with herniated discs, while the NSSD device yielded “good” to “excellent” results in the vast majority of the patients treated. Like traction, NSSD also lengthens and exerts tension upon the spine, but the approach is far different, and produces vastly superior results.
-  Alf Nachemson, MD, PhD, The Load on Lumbar Discs in Different Positions of the Body. Clinical Orthopaedics. 45, 107-122, 1966.
-  G.B. Andersson, A.B. Schultz, Alf Nachemson, MD PhD, Intervertebral Disc Pressures During Traction, Scandinavian Journal of Rehabilitation Medicine, Supplement 9: 88-91, 1983.
-  Gustavo Ramos, MD; William Martin, MD, Effects of Vertebral Axial Decompression on Intradiscal Pressure, Journal of Neurosurgery, 81 (3), 1994. Study performed on a VAX-D Table.
-  C. Norman Shealy, D, PhD; Vera Borgmeyer, RN, MA. Decompression, Reduction, and Stabilization of the Lumbar Spine: A Cost Effective Treatment for Lumbosacral Pain. American Journal of Pain Management. Vol. 7, No. 2. April 1997.