Chapter 39 Low-Level Laser (Light) Therapy for Rehabilitation in Traumatic Brain Injury and Stroke, including Chronic Aphasia

Low-level laser therapy (LLLT) and light-emitting diode therapy(LEDT) have been used as an important therapeutic approach tomanage pain [1, 2], treat tendinopathies [3], or accelerate tissuerepair [2, 4]. Over the last decade, these therapies using red and/orinfrared wavelengths have been applied to skeletal muscles toprevent damage, mainly analyzed by creatine kinase (CK) levels inblood, accelerate muscle recovery after intense exercises, and alsoincrease muscle performance [5-7].