What is Pulsed Electro Magnetic (PEMF) Field Therapy?
PEMF stands for Pulsed ElectroMagnetic Fields. "Pulsed Electromagnetic Field Therapy" is the application of a magnetic field, generated from a device. There are numerous different devices that can be used to create the magnetic field, however generally there are two main types of device. One is a computer chip generated field that is often of low power and relies on the out put of specific frequencies of the magnetic field and the other type is a high power device that generates a pulse using a spark gap.
Below is more detailed information on how PEMF therapy device can differ:
- Power Level
The magnetic energy produced by the various PEMF devices can be as little as that of the Earth’s magnetic field to more than 10,000 times as powerful. The lower power devices are generally used for cellular health and bone healing. The higher power devices are generally used for recovery of trauma from accidents, sports injuries and surgery, as well as for control and improvement of degenerative diseases. Both low power and high power devices help reduce pain, but the higher power devices are more effective in doing so.
- Continuous or Pulsed Waveform
Although there are exceptions in both types, most low power PEMF devices have a continuous waveform while most high power PEMF devices have a pulsed waveform.
- Shape of Waveform
The continuous waveform PEMF devices can produce a square, a saw tooth, a sine or a custom waveform. The pulsed output PEMF devices usually produce a biphasic short duration pulse.
- Control of Frequency
Many low power PEMF devices have preset frequencies to choose from according to the various manufacturers individual theories. Most high power PEMF devices have a user variable control of the frequency.
- Duration of Treatment
Depending on the power level of the PEMF device, the treatment duration can be from three minutes to hours.
Primary Benefits of PEMF Therapy
Clinical evidence shows that PEMF therapy reduces pain associated with trauma from accidents, sports injuries, surgeries and burns as well as from disease and degeneration.
PEMF therapy improves these conditions in many different concurrent ways including mechanical, chemical, electrical and magnetic processes within the cells of the body.
In 1995, Siskin and Walker provided a summary of clinical results on soft tissue damage. They observed no adverse effects and the following positive effects were reported:
- Reduced Pain
- Reduced Inflammation
- Increased range of motion
- Faster Functional recovery
- Reduced muscle loss after surgery
- Increased tensile strength in ligaments
- Faster healing of skin wounds
- Enhanced capillary formation
- Accelerated nerve regeneration
Dr Pawluk, a medical doctor that has been using magnets and Pulsed Magnetic therapy devices for over 40 years says " The body is an electric entity. The water in a human body is not unlike the electrolyte solution in a battery. It is composed of many electrolytes, along with saline. Electrolytes compose both positively and negatively metallic ions, including sodium, potassium, calcium, chloride, etc. Saline is composed of a combination of sodium and chloride. Because of their charge, electrolyte solutions and saline are highly susceptible to surrounding magnetic fields.
Magnetic fields cause or increase motion of ions and electrolytes in the tissues and fluids of the body. This movement stimulates a vast array of chemical, mechanical, and electric actions in the tissues of the body. Therapeutic magnetic fields are used to induce voltages similar to those produced naturally within the body at the cellular and subcellular level. The electromagnetically-induced field transfers charge to the cells of the body. This induced current can lead to nerve firing, muscle contraction, stimulation of cell signal pathways causing cell growth, and a number of other effects. Because of this most basic level of treatment, magnetic therapies have been shown to have positive effects in a myriad of conditions."
As you can see, PEMF therapy can effect the body on a cellular level, enhancing energy production, and raising cellular 'Voltage' so that the cells can return to normal function. With this in mind you can see that PEMF therapy has the potential to positively effect almost any issue in the body.