Abstract
Close to 6million older US adults have Alzheimer's disease or related dementias, yet there is currently no cure or effective treatment. This single-blind randomized controlled trial (clinicaltrials.gov: NCT03475316) aims to establish feasibility, and explore the relative efficacy, of a 6-month social ballroom dancing intervention versus a 6-month active control intervention (treadmillwalking) for improving executive function in 32 older adults at increased risk for Alzheimer's disease or related dementias. Dementia-at-risk status is determined with cut-scores on the memory impairment screen (≥3 to≤6) and/or the AD8 Dementia Screening Interview (≥1). The primary outcome is a composite executive function score from digit-symbol substitution, flanker interference and walking-while-talking tasks. The secondary outcome is functional neuroplasticity during fMRI-adapted versions of digit-symbol substitution, flanker interference and walking-while-talking.
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