Transcranial Direct Current Stimulation Is Effective for Pain Relief of Individuals With Non-Specific Chronic Low Back Pain: A Double-Blind Randomized Clinical Trial

tDCS applied to the dorsolateral prefrontal cortex produced a small but significant pain reduction in individuals with NSCLBP; however, it did not significantly affect pain threshold or disability levels. These findings suggest that, while tDCS helps modulate perceived pain, its isolated use may not improve functional disability. Further studies with larger sample sizes, varied stimulation parameters, and combined interventions are needed to clarify the potential role of tDCS in managing NSCLBP.