The Effects of High-definition Transcranial Direct Current Stimulation on Balance Control in Older Adults With Chronic Low Back Pain

High-definition transcranial direct current stimulation is a novel non-invasive brain stimulation technique based on the principle that when weak intensity electric currents are targeted on specific areas of the scalp, they cause underlying cortical stimulation. The anode increases cortical excitability, while cathode decreases cortical excitability.