Critics of the DRX 9000 machine find that claims made about its technology are bogus, and they state that studies that back up the effectiveness of the machine are not trustworthy, notes a 2007 article from LiveScience. The machine, marketed as a nonsurgical treatment for back pain, can actually make pain worse and cause disk damage.
One problem with the product is that its advertising material includes unproven and incorrect claims, such as the statement that NASA has found the cure to back pain, according to LiveScience. A free report from a chiropractor who advertises the machines had a lot of misspellings, misquotes and grammatical issues that seemed to detract from the respectability of the company selling the DRX 9000 machines.
Another claim made by companies selling the machine is that it has an 86 percent success rate. The study from which the claim takes its data wasn't published in a reputable, peer-reviewed medical journal, explains LiveScience. The study also had no control group, randomization problems and other general testing issues. The website's attempts to contact the company about its findings received no reply. The primary author of the study has since lost his medical license and has separated himself from the medical community.