Research and technical reports

Back-A-Line experience report. 2013

A report of 58 site evaluations with 2,000 individual participants using the Back-A-Line support belt. 71% of subjects reported less back pain on day 21 than at day 1; 75% who began in the "Danger" zone (levels 3-5) dropped to the "Safe" zones (levels 0-1) 
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Postural Evaluation of a New Back Belt Design, Marvin Dainoff, et.al., Technical Report 2000-1, Center for Ergonomic Research, Miami University of Ohio, 2000

The back-belt [Back-A-Line] participants consistently modified reaching postures by limiting extreme ranges of motion during a task that required enhanced stability. The authors suggested that the belt seemed to act to preserve a greater margin of safety -- keeping the user from extreme ranges of motion. 
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A prospective study of back belts for prevention of back pain and injury. Wassell JT, et.al., Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Safety Research. JAMA. 2000 Dec 6;284(21):2727-32.

In the largest prospective cohort study of back belt use, neither frequent back belt use nor a store policy that required belt use was associated with reduced incidence of back injury claims or low back pain. Study subjects were Walmart employees. The back belts were elastic.
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A Critical Review of Randomized Controlled Trials of Static Magnets for Pain Relief. Eccles NK. Journal of Alternative and Complementary Medicine, Volume 11, Number 3, 2005, pp. 495–509

The weight of evidence from published, well-conducted controlled trials suggests that static magnetic fields are able to induce analgesia. 
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Low Intensity Permanent Magnets in the Treatment of Chronic Lumbar Radicular Pain. Khoromi S. Journal of Pain and Symptom Management, Vol. 34 No. 4 October 2007.

In three of the secondary outcomes, global pain relief, average overall and worst overall pain score hint that overall pain in patients with chronic sciatica may be responsive to treatment with 200 G magnets. Lesser gauss (refrigerator magnets) has little effect. 
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Double-Blind Placebo-Controlled Trial of Static Magnets for the Treatment of Osteoarthritis of the Knee: Results of a Pilot Study. Wolsko PM. Alternative Therapies in Health and Medicine; Mar/Apr 2004; 10, 2; ProQuest Central pg. 36-43.

Despite small sample size, magnets showed statistically significant efficacy compared to placebo after 4 hours under rigorously controlled conditions.
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Effects of Static Magnets on Chronic Knee Pain and Physical Function: A Double-Blind Study

We found that surface application of static magnets over painful knee joints reduced perceptions of pain and functional disability to a significantly greater extent than did the application of placebos. 
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