Corticospinal and Motor Behavior Responses After Physical Therapy Intervention in Patients With Chronic Low Back Pain.

This study aims to 1) determine the immediate effects of transcranial direct current stimulation (tDCS) on corticospinal excitability, lumbar multifidus muscle (LM) activation, as well as lumbar stability in patients with chronic low back pain (CLBP), 2) determine the immediate effects of neuromuscular electrical stimulation (NMES) on corticospinal excitability, LM activation, as well as lumbar stability in patients with CLBP, 3) compare the effectiveness of 6-week intervention program among tDCS priming with motor control exercise (MCE), NMES priming with MCE, and MCE alone in patients with CLBP, and 4) determine the associations among corticospinal excitability, LM activation, lumbar stability, movement patterns, and clinical outcomes in patients with CLBP.