One of the most important mechanisms of action for light therapy is the release of nitric oxide (NO). A naturally occurring chemical in the body, nitric oxide is a key signalling molecule which can set off a number of beneficial effects. Most notably, it has a critical role in promoting blood flow to tissues and increasing lymphatic drainage. Through the increase in lymphatic drainage, light therapy indirectly inhibits inflammation processes and thus reduces swelling.

Red and infrared light therapy is a non-invasive treatment that stimulates the body’s own healing mechanisms through both molecular signalling and circulatory modulation, thereby helping to reduce non-chronic or acute pain associated with running injuries. Once the LED light has increased the cell’s energy production, each cell within the treated area begins producing new cells to replace the cells of the injured tissue.