This could be the reason that patients who have had a surgical procedure on the spine have a nine-fold incidence of having another one in the future when compared to patients who have not had back surgery. VAX-D treatment reduces intradiscal pressure which may benefit the disc, biomechanically and metabolically. This is an area for future investigation. The answer to this question is function. Cognetically, the VAX-D. resembles conventional traction tables, and they both distract the spine.
All similarities end here.
The VAX-D decompresses the disc by reducing intradiscal pressures. Studies published on conventional traction demonstrate that intradiscal pressures are not significantly reduced and in some instances were elevated during distraction. This answer is in the Time-Energy Distraction Curve. Any contraction of the spinal musculature will elevate intradiscal pressure. This curve has been expressed mathematically.