| Autor: |
J I, Jacobson, R, Gorman, W S, Yamanashi, B B, Saxena, L, Clayton |
| Rok vydání: |
2001 |
| Předmět: |
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| Zdroj: |
Alternative therapies in health and medicine. 7(5) |
| ISSN: |
1078-6791 |
| Popis: |
Noninvasive magnetotherapeutic approaches to bone healing have been successful in past clinical studies.To determine the effectiveness of low-amplitude, extremely low frequency magnetic fields on patients with knee pain due to osteoarthritis.Placebo-controlled, randomized, double-blind clinical study.4 outpatient clinics.176 patients were randomly assigned to 1 of 2 groups, the placebo group (magnet off) or the active group (magnet on).6-minute exposure to each magnetic field signal using 8 exposure sessions for each treatment session, the number of treatment sessions totaling 8 during a 2-week period, yielded patients being exposed to uniform magnetic fields for 48 minutes per treatment session 8 times in 2 weeks. The magnetic fields used in this study were generated by a Jacobson Resonator, which consists of two 18-inch diameter (46-cm diameter) coils connected in series, in turn connected to a function generator via an attenuator to obtain the specific amplitude and frequency. The range of magnetic field amplitudes used was from 2.74 x 10(-7) to 3.4 x 10(-8) G, with corresponding frequencies of 7.7 to 0.976 Hz.Each subject rated his or her pain level from 1 (minimal) to 10 (maximal) before and after each treatment and 2 weeks after treatment. Subjects also recorded their pain intensity in a diary while outside the treatment environment for 2 weeks after the last treatment session (session 8) twice daily: upon awakening (within 15 minutes) and upon retiring (just before going to bed at night).Reduction in pain after a treatment session was significantly (P.001) greater in the magnet-on group (46%) compared to the magnet-off group (8%).Low-amplitude, extremely low frequency magnetic fields are safe and effective for treating patients with chronic knee pain due to osteoarthritis. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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