To study if high-intensity pulsed magnetic stimulation of specific intensity and duration can lessen pain.
10 adult subjects with specific pains (for at least one year) were investigated. The subjects received 10 treatments (4 treatments as control treatments without magnetic application).
| Exposure | Parameters |
|---|---|
Exposure 1:
Modulation type:
pulsed
Exposure duration:
6 treatments each lasting 10 min
|
|
| Frequency |
|
|---|---|
| Type | |
| Waveform | |
| Exposure duration | 6 treatments each lasting 10 min |
| Modulation type | pulsed |
|---|---|
| Additional info |
The repetition rate was 40 impulses per min. The pulsed magnetic field was damped with a 0.4 ns rise time and an exponentially decaying pulse lasting 250 µs. |
| Exposure source | |
|---|---|
| Setup | The inductor housing was applied to the areas of maximal pain. The plane of the coil was parallel to the body surface. Four control treatments were conducted by turning the stimulator on hence achieving the same noise but disconnecting the inductor from the stimulator. |
| Additional info | The coil was easy to move hence the magnetic field was easily applied to the surface of the subjects. The subjects consisted of 5 males and 5 females who had been symptomatic and stationary for at least 1 year with their specific pain. |
| Measurand | Value | Type | Method | Mass | Remarks |
|---|---|---|---|---|---|
| magnetic flux density | 1.17 T | maximum | measured | - | at the surface of the coil |
High-intensity pulsed magnetic stimulation applied to painful areas on the human body could achieve significant pain control. 50 % of the subjects experienced lasting pain relief while the rest had consistent pain relief lasting 8-72 h. These data were significantly different from the blinded control (sham exposure) results.
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