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“In conclusion, while uncontrolled case studies have shown that the Activator maybe effective at reducing back pain without any firm proof (such as a well designed RCT study), I would agree with Prof Ernst’s view that this type of intervention has no sound scientific bases and is “at best, an expensive placebo”.” Prof Richard Appleyard, Australian School of Advanced Medicine, Macquarie University. Friends of Science in Medicine (October 2012) [pdf]