What is the primary mechanism of action for laser therapy?

The primary mechanism of action for laser therapy revolves around its ability to promote cellular function and healing. Laser therapy utilizes specific wavelengths of light to penetrate tissues, which stimulates cellular activities such as ATP (adenosine triphosphate) production, enhances blood circulation, and increases collagen synthesis. These processes contribute to tissue repair and regeneration by facilitating the body's natural healing mechanisms.

When the cells, particularly fibroblasts and endothelial cells, absorb the laser light, they undergo a series of biochemical changes that lead to the repair and healing of damaged tissues. This is significant in various conditions, from chronic pain management to recovery from injuries, as the laser encourages not only the repair of existing tissues but also helps in reducing inflammation and accelerating wound healing.

While other options like increasing nerve conduction velocity, reducing muscle tension, and improving joint range of motion are important aspects of therapeutic interventions, they are often secondary effects resulting from the primary enhancement of cellular healing processes initiated by the laser therapy itself. Therefore, promoting cellular function and healing is at the core of how laser therapy achieves its therapeutic effects.