Another important parameter of a PEMF system is the so-called waveform. It describes the concept of transmitting frequency of a pulsed magnetic field as it would appear on a graph. The simplest waveform is hereby the sine wave. In order to transmit 5Hz from the sender to the receiver via a simple sine wave, the wave needs to repeat it`s cycle 5 times per second in sequence. This waveform is technically easy to gain but very limited in efficiency and extremely time-consuming in transferring information from the sender to the receiver. Surprisingly, most available low-pulsed PEMF systems on the market are still using simple sinewaves. Engineering, development and also manufacturing of such frequency generators are very cheap but also less effective. A more complex waveform is the so-called square wave. A square wave is a non-sinusoidal periodic waveform in which the amplitude alternates at a steady frequency between fixed minimum and maximum values, with the same duration at minimum and maximum. Square waves are also producing odd harmonics, which are very important to increase resonance effects. Due to its sharp rise and fall times, the immediate response rate of the targeted tissue is much higher. The most complex wave form used in modern PEMF systems is known as the saw tooth. Saw tooth waves are characterized by a constant rise and rapid fall time and are producing all odd and even harmonics of its basic frequency. Since the main objective of an effective PEMF system for home use is to target ALL cells of your body, the wave form is a very crucial parameter to be aware of. Some manufacturers advertise “patented” wave forms, which are not documented in common physics. Such waveforms are artificially altered sine wave combinations, offering little independent clinical evidence as to their effectiveness. Their published clinical trials are mostly conducted by the company itself (industry-friendly) and therefore not considered as publicly acknowledged scientific study designs.
