Archive for August, 2014
Do magnets help relieve knee pain? Yes they do. Magnets are an effective treatment option for knee arthritis. How do we know? Well, for one there are plenty of studies proving magnetic therapy helps relieve knee pain. Second, the magnetic therapy knee braces we sell rarely get returned. It’s doubtful the people who buy these knee braces would keep them if their knees didn’t feel better. If the magnetic therapy knee braces don’t relieve your knee pain we will take them back and issue a refund.
Here’s a study from Harvard :
Double-blind placebo-controlled trial of static magnets for the treatment of osteoarthritis of the knee: results of a pilot study.
Wolsko PM, Eisenberg DM, Simon LS, Davis RB, Walleczek J, Mayo-Smith M, Kaptchuk TJ, Phillips RS. Division for Research and Education, Harvard Medical School, Boston, MA, USA.
CONTEXT: Outpatient clinical studies of magnet therapy, a complementary therapy commonly used to treat osteoarthritis (OA), have been limited by the absence of a credible placebo control.
OBJECTIVE: Our objective was to assess the feasibility and promise of studying static magnetic therapy for knee OA and determine the ability of a new placebo-magnet device to provide concealment of group assignment.
DESIGN: Randomized, double-blind, placebo-controlled clinical trial.
SETTING: Academic teaching hospital in Boston. PARTICIPANTS: We enrolled 29 subjects with idiopathic or post-traumatic OA of the knee.
INTERVENTIONS: Subjects received either high-strength magnetic (active) or placebo-magnetic (placebo) knee sleeve treatment for 4 hours in a monitored setting and self-treatment 6 hours daily for 6 weeks.
MAIN OUTCOME MEASURE Primary outcomes were change in knee pain as measured by the WOMAC Osteoarthritis Index Pain Subscale at 6 weeks and extent of group concealment at study end.
RESULTS: At 4 hours, VAS pain scores (+/- SE) on a 5-item scale (0-500, 500 worst) decreased 79 +/- 18 mm in the active group and 10 +/- 21 mm in the placebo group (P < 0.05). There were no significant differences in any primary or secondary measure of efficacy between the treatment groups at 6 weeks. Despite widespread testing for magnetic properties, at study end, 69% of the active group and 77% of the placebo group (P > 0.2) believed that they had been assigned to the active treatment group.
CONCLUSION: Despite our small sample size, magnets showed statistically significant efficacy compared to placebo after 4 hours under rigorously controlled conditions. The sustained efficacy of magnetic therapy for knee osteoarthritis could be assessed in an adequately powered trial utilizing an appropriate control such our new placebo-magnet device.
Alternative Therapies in Health and Medicine. 2004 Mar-Apr;10(2):36-43. PMID: 15055092
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