AnalgesicLaser light is absorbed and partly scattered in the target tissue and thereby largely converted into heat. This thermalstimulus to the nociceptors of the skin affects the peripheral neurological tract and polarizes the A-ß and A-d neurons asdescribed in the paingate-control theory. This polarization activates the neural and humoral endorphinergic pain inhibitionsystem with immediate pain relief as a result.
Anti-Inflammatory Inflammation is necessary for healing. The challenge for the clinician is to control this acute inflammatory stage in orderto allow the next stage of healing. The HPL units effectively modulate the inflammatory processes secondary to their deepstimulation of tissues. This deep stimulation triggers vasodilatation and increased oxygenation, which activates the mainmetabolic activities and resolves the inflammatory process quicker.
Regenerative effects The described acceleration of healing processes primarily manifests in the form of fibroblast activation. The actual cascadeof healing is fueled by increased ATP synthesis and increased protein synthesis combined with cellular proliferation. Becauseof the non-thermal nature of this activation, only small amounts of laser energy are required. The attenuation of the laserlight in the tissue depends on the localization of the lesion and determines the laser power required. Deeper structures suchas tendons or joint capsules may require the application of higher doses to the surface.