Use of Low-Level Laser Therapy and Light-Emitting Diode Therapy to Improve Muscle Performance and Prevent Damage: From Animal Models to Clinical Trials

Low-level laser therapy (LLLT) and light-emitting diode therapy

(LEDT) have been used as an important therapeutic approach to

manage pain [1, 2], treat tendinopathies [3], or accelerate tissue

repair [2, 4]. Over the last decade, these therapies using red and/or

infrared wavelengths have been applied to skeletal muscles to

prevent damage, mainly analyzed by creatine kinase (CK) levels in

blood, accelerate muscle recovery after intense exercises, and also

increase muscle performance [5-7].