v. Wikipedia:
history
Some proponents estimate that about 2000 years ago in a Chinese medical practitioners use of magnetic stones to aid healing was customary. Hippocrates described the use of magnetic stones. The ancient Romans are believed to have positive effects of magnetic fields and magnetic jewelry worn by the ancient Egyptians to the strengthening of health. In the 18th Century came the so-called animal magnetism of Franz Anton Mesmer in Europe to a brief flowering.
variants
Depending on the manufacturer static or pulsating magnetic fields - 217.249.8.31 18:23, 5 Feb 2007 (CET) is very different frequencies, intensities and programs through tubes, coil mat, small pillow and / or rods generated. produce permanent magnets , the static magnetic fields exist in the form of plasters, insoles, bracelets, etc. In spa is primarily carried out with static magnetic fields. Wellness products have not, however, a medical device the mechanism of action. Some therapists use a magnetic wand to acupuncture without needles or reflexology massage . are
for a universal application (according to textbook electrotherapy) are best appliances with a magnetic flux density in the 30μT and 10000μT and an adjustable frequency range between 0.1 Hz and 15000 Hz. The power setting should mehreren Stufen möglich sein. Wichtig ist ebenso die Verfügbarkeit der Signalform wie Sinus, Multisinus, Sägezahn/Dreieck und Rechteckimpulsform.
Die Geräte sind zwar meist als Medizinprodukte der Klasse II a zulassungspflichtig und unterliegen festgelegten Sicherheitsstandards, dennoch ist ihre physikalische Beschaffenheit nicht genormt. Wegen dieser großen Unterschiede dürfen Aussagen über die Wirksamkeit oder Nichtwirksamkeit einer bestimmten Magnetfeldanwendung nicht ohne Weiteres verallgemeinert oder auf andere Anwendungen übertragen werden. Daher ist die Übereinstimmung der Geräteparameter mit den Studienparametern Voraussetzung. Diese Daten gehen aus der "Klinischen Bewertung" des Magnetfeldtherapiegerätes forth.
application
The application can be made in the practice of a doctor or therapist, a hospital or rehabilitation facility, and in the home. Since often a long-term, or at least daily application is necessary and magnetic therapy is also recommended for health care receive home therapy at an extremely high priority. The generated magnetic field can
not even feel it. Some users, however, report a sensation of warmth or slight tingling through the application. The therapists attribute this to improved blood circulation.
Due to the fact that magnetic fields Penetrate clothing is to complete the application easily. Fractures can be treated through by the cast.
In Austria, the magnetic field therapy since 2003 only permitted a doctor's orders.
contraindications and warnings
The contraindications are in the manual of the magnetic field therapy device refer to. The use in healthy people for prevention or to improve the well-being without medical consultation appears harmless to current knowledge.
people with pacemakers or other electronic implants should generally not be subject to magnetic field therapy, as it could cause dangerous interactions with the control electronics.
use magnetic therapy devices, which field strengths below 35μT for whole-body therapy, can also be used with electronic implants (including pacemakers).
Since interactions with electronic implants can not be completely excluded are those laid down by the implant manufacturers critical limits, is generally referred to an individual assessment. In modern equipment is due to the influence of electromagnetic Fields no acute risk for heart pacemaker. All modern appliances switch in case of interference into a fixed-frequency mode. For patients, the only constant heart rate, independent of physical activity. Outside of the "interference field" around the pacemaker back on itself to normal function.
The self-treatment of a serious health problem with magnetic field therapy without medical assistance may not be carried out. In Austria the 343rd § MFTG regulation.
operation
There are scientific Hypotheses on the effects of magnetic therapy. The main mechanism seems to promote blood circulation and cell metabolism to be. From a scientific point of view, magnetic fields induce change by its action in the body voltages. This could affect the chemical and physical processes in cell membranes . Indeed cell cultures have shown experimentally reactions, and the conduction in isolated nerve was changed in the magnetic field. These effects are dependent on the strength of the magnetic field and frequency and waveform. An effect of static magnetic fields on living tissue has not been demonstrated until now.
results
the purposes of 'Evidence-based medicine' can be used following medical scientific evidence documenting the effectiveness of: - meta-analysis, individual randomized controlled trials; cross-over studies - The contexts are see the "clinical assessment" of each device (if any!). Please note: Wellness products have not a medical device the mechanism of action! see § 102 MPG
The health insurance cover the costs not usually. Even private health insurers often refuse to reimburse.
Physical criticisms
- contradicts the presumed positive effect of the magnetic field treatment of the presumed negative effect of electromagnetic , although both are based on electromagnetic fields. For electro There are more studies are conflicting but often.
- Everyone comes every day with a static / oscillating magnetic fields (speakers, car, rail, natural magnetic fields ...) with different Freuquenzen and field strengths in contact, so a magnetic field should have no measurable effect on the med. For staff who often comes with some very strong magnetic fields in contact such as physicists and physicians, no significant deviation is observed in the course of the disease.
- Static magnetic fields exert forces only on magnets, magnetized body and pallet made (see Lorentz force ) moved. Since the Lorentz force only the direction of the carrier is changed slightly, the effect is partially offset by stochastic movements in the body are averaged and the man is not magnetic (water for example diamagnetic ), no systematic manipulation of the human organism is to be expected. For oscillating magnetic fields can, for example in brain currents, however, be different. Most
- used magnetic fields (especially in permanent magnet) are too weak to change the nature of the cells or even cause the macroscopic structures. In some cases fall below the specified densities, the density of Earth's magnetic field (20-30 micro-Tesla).
- The blood is indeed part of iron, however, the iron loses its magnetic properties when it enters into a bond, thereby increasing blood flow can not be explained by the hemoglobin. must
method
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