tDCS for Cancer-Related Fatigue and Weakness

"Participants will receive anodal tDCS targeting motor-related cortical areas using either traditional sponge-based or high-definition (HD)-tDCS configurations. The intervention is delivered at 1.5-2.0 mA for 20-30 minutes, either before or during a sustained submaximal isometric contraction task designed to induce fatigue.~tDCS will be administered in a counterbalanced crossover design, where each participant completes both active stimulation and sham stimulation conditions in separate sessions spaced at least one week apart. Sham stimulation mimics the sensory effects of active tDCS (30-second ramp-up and down) without delivering sustained current.~The intervention is unique as the target population is cancer survivors with persistent fatigue \>6 months post-treatment. Also, the tDCS is combined with neurophysiological assessments, including EMG, TMS, EEG, and MRI, to provide neurophysiological evidence of acute effects."

"Participants will receive anodal tDCS targeting motor-related cortical areas using either traditional sponge-based or high-definition (HD)-tDCS configurations. The intervention is delivered at 1.5-2.0 mA for 30 seconds to mimic the sensation of active tDCS (20 minutes long), either before or during a sustained submaximal isometric contraction task designed to induce fatigue.~tDCS will be administered in a counterbalanced crossover design, where each participant completes both active stimulation and sham stimulation conditions in separate sessions spaced at least one week apart. Sham stimulation mimics the sensory effects of active tDCS (30-second ramp-up and down) without delivering sustained current."