Sleep disturbance is a significant public health issue among older adults and is linked to declines in overall well-being. Tai Chi has been identified as a promising low-cost nonpharmacological strategy for improving sleep quality. However, evidence on the effectiveness of short-term virtual Tai Chi interventions remains limited, despite their potential value for older adults who face barriers to in-person participation. This study evaluated a 6-week virtual Tai Chi program delivered via Zoom. Participants attended three 50-minute sessions per week, with course recordings provided to support additional practice. A waitlist group received the same intervention after the initial 6-week period. Recruitment occurred on a university campus. Seven participants switched groups after randomization, resulting in incomplete randomization. Data were collected at baseline, 6 weeks, and 12 weeks using the Pittsburgh Sleep Quality Index (PSQI). Five-Facet Mindfulness Questionnaire baseline data were assessed. The intention-to-treat approach was used in the main analyses, with pre-post comparisons serving as sensitivity analyses.
