The Effect of Low-Level Laser Therapy on Delayed Onset Muscle Soreness When Delivered Pre- and Post-Eccentric Exercise

Context: Delayed onset muscle soreness (DOMS) is a set of symptoms including muscle soreness, decreased muscle strength, and decreased function that present 24-48 hours after eccentric or unaccustomed-to exercise. Clinically, low-level laser therapy (LLLT) is being used to attenuate DOMS symptoms. Obiective: The purpose of this study was to determine the effectiveness of LLLT for the management of DOMS when delivered pre- and post-eccentric exercise. Design: Double-blind randomized control. Setting: Controlled laboratory. Patients or Other Participants: Twenty-seven healthy male volunteers were randomly assigned into one of three groups (LLLT = 10, height = 181.1 ± 6.9 cm, weight = 91.4 ± 2.3 kg, age = 23.4 ± 4.4 yr; Sham = 8,...