Transcranial Direct Current Stimulation Combined With Tai Chi for Dual-Task Mobility and Cognitive Function in Older Adults With Cognitive Decline

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This randomized clinical trial evaluated the effects of transcranial direct current stimulation (tDCS) combined with Tai Chi on dual-task mobility, cognitive function, and physical function in older adults with mild cognitive impairment or self-reported memory concerns. Participants were randomly assigned to receive either Tai Chi combined with tDCS or Tai Chi alone for 8 weeks. Assessments were conducted at baseline and at Weeks 8, 20, and 32. Outcome measures included dual-task Timed Up and Go (DT-TUG) time, single-task TUG, dual-task cost, Montreal Cognitive Assessment-Basic (MoCA-B), Digit Span Test, balance, gait, lower-extremity function, health-related quality of life, sleep quality, anxiety, and depressive symptoms.