COLD LASER THERAPY (LLLT)
As one of our specialised services, cold laser therapy allows us the ability to treat both acute and chronic conditions safely and effectively. Using protocols proven through research, we screen our patients carefully to ensure cases are appropriate for laser therapy.
The term Laser is the acronym for Light Amplification by Stimulated Emission of Radiation. A laser light is monochromatic, collimated, and coherent. A laser is a device that produces such a light. Low level laser therapy (LLLT) is used by some physiotherapists to treat various musculoskeletal condition. LLLT is a non-invasive light source treatment that generates a single wavelength of light. It emits no heat, sound, or vibration. It is also called photobiology or biostimulation. LLLT is believed to affect the function of connective tissue cells (fibroblasts), accelerate connective tissue repair and act as an anti-inflammatory agent. Lasers with different wavelengths, varying from 632 to 904 nm, are used in the treatment of musculoskeletal disorders.
Wavelengths between 660 nm and 905 nm have the ability to penetrate skin, and soft/hard tissues. This light have a good effect on pain, inflammation and tissue repair.
An output power of less than 0.5 Watts is classed as LLLT ( class III in the USA) whereas lasers with an output powers than 500 mW or 0.5 Watts are termed High Power Laser Therapy HPLT (Class IV lasers known as 'HOT LASER). HPLT creates heat on the surface of the skin due to their higher power density (irradiance). LLLT is often referred to as “Cold Lasers” since they do not create a heating sensation during treatment.
The effects of the LLLT which are significant for physiotherapy, and makes this tool useful to enhance other treatments as therapeutic exercise, are:
Reduction of inflammation: It can occur within hours to days.
Accelerated tissue regeneration: LLLT stimulates cell proliferation of fibroblasts, keratinocytes, endothelial cells and lymphocytes.
(source - physiopedia: