Long-Term Effect of High-Intensity Laser Therapy in the Treatment of Patients with Chronic Low Back Pain: A Randomized Blinded Placebo-Controlled Trial

This study evaluated HILT (High Intensity Laser Therapy) alone or with exercise for treatment of chronic low back pain. The HILT was pulsed Nd:Yag (1,064 nm) delivered a dose of 3,000 J. Results indicate that HILT combined with exercise was more effective than either HILT alone or placebo + exercise.