ArticleMovement disorders clinical practice2026
Remote Video Assessment of Ataxia via SARA
Article in Movement disorders clinical practice, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
18 authors.
Funding
Abstract
backgroundRemote assessment of ataxia is increasingly important for patient-centered care and clinical research. SARA
objectiveThe aim was to evaluate the correlation of pose-derived gait and stance endpoints from SARA
methodsIn a multisite observational study, participants recorded SARA
resultsWe analyzed 5418 gait and stance videos from 58 participants across 4 sites (gait n = 2205, stance n = 3213). Score distribution was skewed toward lower severity. For gait, clearance variability (ρ = 0.52 [0.37-0.64]) and median-normalized base of support (ρ = 0.51 [0.35-0.66]) correlated most strongly with item ratings, followed by shoulder sway root mean square (ρ = 0.43 [0.24-0.60]). Adjusted foot clearance (worse limb) correlated negatively (ρ = -0.35 [-0.52 to -0.15]). For stance, anteroposterior sway (ρ = 0.51 [0.36-0.65]), leg alignment variability (ρ = 0.51 [0.36-0.65]), and composite sway (ρ = 0.48 [0.32-0.62]) were most associated with severity. Base of support widened monotonically with severity and was the most reliable gait feature (intraclass correlation coefficient [ICC] = 0.88).
conclusionsPose-derived digital endpoints from home-captured SARA
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