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Laser Pulsing

Pulsed Lasers and Low Level Laser Therapy

A recent research article published in August 2010 in the Scientific and Clinical Journal "Lasers in Surgery and Medicine" concluded that “Constant wave light is the gold standard and has been used for all Low Level Laser Therapy (LLLT) applications. However, this review of the literature indicates that overall pulsed light may be superior to constant wave light with everything else being equal.”

Pulsed modalities of treatment are not new, they have been employed for many years in numerous biomedical and physical therapy devices. Spectralight’s PulseDrive now brings this technology to low level laser therapy for hair loss by allowing you to easily convert your existing constant wave Laser Messiah helmet into a pulsed laser helmet. 

Furthermore over time it is believed that the human body adjusts to any form of external stimulus, to combat this, some LLLT practitioners recommend using multiple stimulation frequencies. This has been taken into consideration in the development of PulseDrive by the incorporation of multiple frequency modes, giving you the ability to switch between frequencies and alter the biostimulation effect.


 

How does Laser Pulsing work with Low Level Laser Therapy?

It is believed that there are a number of mechanisms that could contribute to improved Low Level Laser Therapy (LLLT) results using pulsed lasers. The majority of the pulsed light sources used for LLLT use frequencies in the 2.5–10,000 Hz range. This observation suggests that there may be fundamental frequencies existing in biological systems and the application of pulsed light at those frequencies may help to induce additional biostimulation effects.

Additionally reasurchers believe that one of the mechanisms of action of Low Level Laser Therapy on a cellular level is the photodissociation of nitric oxide from a protein binding site such as those found in cyctochrome c oxidase. If this process occurs it is likely that the nitric oxide would rebind to the same site even in the presence of continuous light. Therefore if the light was pulsed multiple photodissociation events could occur, while in CW mode the number of dissociations may be much smaller.

 

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