Class 4 Laser Therapy, or "photobiomodulation", is the use of specific wavelengths of light (red and near-infrared) to create therapeutic effects. These effects include, but are not limited to, improved healing time, pain reduction, increased circulation, decreased swelling and vasodilation. Laser Therapy has been widely utilized in Europe by physical therapists, nurses, and doctors as far back as the 1970's. Now, after FDA clearance in 2002, Laser Therapy is being used extensively in the United States.
During Class 4 Laser Therapy, the infrared laser light interacts with tissues at the cellular level, and metabolic activity increases within the cell, vastly improving the transport of nutrients across the cell membrane. This initiates the release of nitric oxide that leads to a cascade of beneficial effects, increasing cellular function and health.