Low level light therapy (LLLT – class3b), as well as High level laser therapy (HLLT – class IV) has in recent years attracted significantly more attention in many clinical fields with the arrival of a new generation of light-emitting diodes (LEDs) which have the ability to irradiate large targets. The optimal wavelengths which allow the most absorption into the tissue being between 600-905nm. With the Medical benefits ranging from Pain control, and the acceleration of healing through stimulated cell growth and Increased cellular metabolism on bone tissue, connective tissue, and tendon tissue, as well as anti inflammatory effects. 

The below artice discusses the effectivity of low level and high level laser therapy in a clinical environment.

View the complete study here  –  Is laser therapy really effective

It is very important to note, that in order to achieve optimal therapeutic effects from laser therapy, the correct dosage must be used.

The Arndt-Schultz law states that Weak Stimuli (under dosage) increases physiological activity, moderate stimuli (optimal dosage) inhibits activity, and strong stimuli (over dosage) abolishes activity. This means that if under dosage occurs, a moderate result may be achieved. If Optimal dosage occurs, the best results are achieved. Whereas if over dosage occurs, a negative effect may be achieved where no stimulation occurs in the tissue.

It is therefore extremely important to know the correct dosage to use when doing laser therapy. This is why most manufacturers, such as Enraf-Nonius, have incorporated a wide range of  research based clinical protocols into their laser therapy devices, to ensure you get the best results.

Please view the Dosage Guidelines for laser therapy below

Dosing Table  780 – 860nm for low level laser therapy

Dosing table 905nm for low level laser therapy

The World Association for PhotobiomoduLation Therapy (WALT) was formed in 1994 in Barcelona, Spain at the joint Congress of the International Laser Therapy Association (ILTA) and the International Society for Laser Application in Medicine (ISLAM) when these two international groups merged and WALT became the leading world body for promoting research, education and clinical applications in the field of photobiomodulation  with lasers and other light sources.

The multinational membership includes the world’s leading experts in all forms of treatment mediated by the photobiomodulating effects of light occurring without thermal effects on irradiated tissue.

Link to the above website can be found here https://waltpbm.org/

Useful Links to WALT Research partners can be found here https://waltpbm.org/documentation-links/useful-links/

University of Johannesburg Laser Research center https://www.uj.ac.za/faculties/health-sciences/research-centres/laser-research-centre