WeHelpPlus Signal pattern development history

There are perhaps 10 trillion combinations of waves, frequencies, intensities etc.  Dr. Dennis spent 25 years testing and analyzing these combos until he found what seems to be the best at achieving significant results. He was able to pinpoint and lock in three inductively coupled electrical stimulation patterns. (PEMF)

 The three PEMF patterns in the pulse generator are based on the stimulation patterns developed over the years for several different applications. Some of this information has been published by Dr. Dennis developing the system, some by others, and quite a lot has not been published at all yet. These different types of experiments and applications have driven the understanding of what the best stimulation patterns are likely to be, mainly for skeletal muscle, with the working hypothesis that what is good for skeletal muscle is likely also good for other tissues of the musculoskeletal and neuromotor system, and based on clinical observations with this PEMF system, that seems to be the case.


The different types of experiments and applications worked on with these signal patterns since 1987 include:

 1- Fiber-type transformation by implantable stimulation for cardio-myoplasty experiments

 2- Maintenance of skeletal muscle mass and contractility following chronic denervation

 3- Maintenance of muscle mass and contractility during disuse (hind limb unweighting) experiments

 4- Excitability and contractility in developing and aging muscle

 5- Interaction of muscle with tendon and bone tissue during embryonic development (chicks)

 6- In vitro tissue engineering of skeletal, cardiac, and smooth muscle

 7- Development of control and maintenance stimulation PEMF for hybrid prosthetic and robotic PEMF (having built the first ever hybrid robot powered by living      muscle  at MIT in 2000-2001) 

 8- Design of in vitro and in vivo bioreactors for growing engineered musculoskeletal and neuromotor tissue cells.

So, taking his experience from about 25 years with all of the above, the most effective and very efficient stimulation patterns were boiled down to three sequences. These (PEMF) electrical stimulation patterns were then transformed by using calculus to determine the necessary magnetic field patterns and how the magnetic fields needed to change over time to induce the desired electrical charge within the tissue being stimulated. Then these magnetic field requirements were converted into a sequence of electrical pulses to be generated by the PEMF generator unit to drive the coils to generate the required magnetic field waveforms. So, it can be seen, that you have to go back several layers to get to the actual stimulation patterns as they would be seen within the PEMF pulse generator itself. These are transformed in space and time to produce the desired fields within the tissue itself. It was also discovered that while a square wave was optimal it was not necessary the most efficient. From an engineering perspective it’s almost impossible to generate a true square wave. Therefore, using engineering assessments, an optimized trapezoidal wave was the results.

 From research and experience, it is known that stimulation of muscle will stimulate nerves which stimulates bones and therefore all the intermediately involved cells as well. There are fast twitch and slow twitch muscles. Stimulation patterns for both of these types of muscles are necessary to appropriately stimulate all the muscles of the body, or over those areas where the magnetic field is placed.  An inductively coupled electromagnetic coil is placed on the skin overlying the injured site. An external power source produces a circular current within the coil which produces a magnetic field perpendicular to the direction of the current. This magnetic field induces an electrical field within the injury site.

The three fundamental PEMF stimulation patterns are:

 #1: Simulated slow twitch muscle activation and contraction:

 5 Hz electrical square waves tuned to produce the necessary magnetic field trapezoidal waves between the coils. These primary electrical square waves are single    electrical pulses alternating positive -> negative -> positive -> … with a 200 ms delay between each pulse to yield 5 pulses per second.

#2: simulated fast twitch muscle activation and contraction:

 Short bursts of electrical square waves, one burst each second, repeating for the duration of the second stimulation pattern (10 minutes). Each burst is comprised of 5 electrical square wave pulses at 100 Hz, then a rest period for 1 second, repeat for the duration (10 minutes). All pulses are uni-polar (not alternating polarity as above).

#3: exactly the same as #2 above, except with the opposite polarity for the electrical pulses.

For More Information and/or purchase, contact:
Donnie Rudd, Ph.D.,D.Sc.,D.D.,J.D.
1700 Rivercrest Dr. #1205
Sugar Land, TX 77478

Email Dr.Donnie Rudd