Intra-Rater Test-Retest Reliability of Static Dual-Task Balance Measures in Untrained People with Parkinson's Disease

Background/Objectives: Dual-task (DT) motor assessment in Parkinson's disease (PD) provides insight into functional abilities, yet limited evidence on its reliability may bias therapy results. This study aims to evaluate the intra-rater test-retest reliability of single and functional DT balance measures in untrained individuals with PD, and to determine the Standard Error of Measurement (SEM) and the Minimal Detectable Change (MDC).