INTRODUCTION
Aging populations require scalable, accessible, and inclusive lifestyle interventions that address multiple modifiable dementia risk factors.

METHODS
The REMINDer pilot randomized controlled trial, randomized (1:1) healthy older adults (≥ 60 years, retired) to a 6-week online multimodal mind–body group intervention or a delayed-intervention control group. The live-streamed, home-based, two 1-hour sessions/week program integrates music, dance movement, and mindfulness via video conferencing. Primary outcomes were feasibility (adherence benchmark: ≥ 60%) and changes in mental and physical well-being (Health-Survey SF-12). Secondary outcomes comprised feasibility metrics and safety.

RESULTS
Intention-to-treat analyses included 68 participants (mean [standard deviaton {SD}] age: 69.2 [5.2] years; 80.9% women). Mean (SD) adherence was 80% (30%), exceeding the predefined benchmark (p = 0.010). There were no group differences in SF-12 mental (p = 0.827) or physical well-being (p = 0.656) from pre-to-post intervention. Feasibility was high, with 95% reach, 90% retention, and 9% dropout. No serious adverse events occurred.

DISCUSSION
The scalable, accessible online multimodal intervention is feasible and safe for older adults.

TRIAL REGISTRATION
ClinicalTrials.gov (Identifier: NCT06530277) on July 27, 2024. https://clinicaltrials.gov/study/NCT06530277.