Science of Laser Therapy

LASER: Visible and Near Infrared (NI) Light

All light is not the same. It is measured in wavelengths, with each wavelength of light representing a different color of the spectrum. LASER (Light Amplification by Stimulated Emission of Radiation) can be used as a therapeutic device which produces monochromatic (one specific wavelength), coherent (constant phase) and polarized (directional) light. Near infrared (NI) light uses invisible, near infrared wavelengths between 700 and 1200 nm. Many published studies refer to the use of laser as Low-Level Laser Therapy (LLLT) or High-Intensity Laser Therapy (HILT). Laser studies have been performed with isolated live tissue samples, animals, and human subjects.

MECHANISM OF ACTION: Photochemical

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When applied to an organism, Laser light, tuned to specific wavelengths and frequencies, stimulates metabolic processes at the cellular level and acts by inducing a photochemical reaction in the cell, as biostimulation or photobiomodulation.  Studies have shown that when tissue cultures are irradiated by Lasers, enzymes within cells absorb energy from laser light. Chromophores are components of various cells and sub-cellular organelles which absorb light.  The stimulation of Chromophores on mitochondrial membranes incites the production of ATP. Visible (red) light and Near Infrared (NIR) are absorbed within the mitochondria and the cell membrane. This produces higher ATP levels and boosts DNA production, leading to an increase in cellular health and energy.

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