Laser therapy is used to reduce pain by utilizing the specific wavelength of light to interact with tissue and is thought to help accelerate the healing process. It is used to cut or destroy tissue or help to eliminate pain, swelling, reduce spasms and increase functionality. The effects of laser appear to be limited to a specified set of wavelengths of laser, and administering laser below the dose range does not appear to be effective. During treatment of the tissue with the laser beam, an interaction between cells and photons takes place, thus a photochemical reaction. Photons from the laser affect the tissue at the cellular level.
The laser enters the tissue, alters cell membrane permeability, and at the cellular level is absorbed in the mitochondria of the cell creating physiological changes such as:
Rapid cell growth: The laser treatment increase cell reproduction and promote the growth of the cell.
Faster wound healing: The laser stimulates fibroblast development in damaged tissue. The reduction in recovery time is an important consideration.
Anti-inflammatory action: The laser reduces swelling caused by bruising or inflammation of joints to give improved joint mobility and relieve the joint pain.