Quantitative Assessment of Upper Limb Ataxia Using a Virtual Reality-Based Evaluation System.

ABSTRACT:

Objective

Cerebellar ataxia impairs coordination and balance, reducing quality of life. Conventional clinical scales, including the Scale for the Assessment and Rating of Ataxia (SARA) and the International Cooperative Ataxia Rating Scale (ICARS), are widely used to assess ataxia but are limited by subjectivity and inter-rater variability. Therefore, we aimed to develop a virtual reality-based system to objectively and quantitatively assess upper limb ataxia.

Methods

A "virtual nose-finger test" was implemented using a head-mounted display, in which participants performed repetitive reaching tasks. Six parameters were measured: four spatial (subtracted length, trajectory ratio, terminal trajectory length, and maximum overshoot distance) and two temporal (required time and mo

SUBMITTER: Sato M 

PROVIDER: S-EPMC12790176 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature