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Structural Validity and Inter-rater Reliabitiliy of the Ataxia Trunk, Lower And Upper Extremity Scale (ATLAS)

NCT07079332 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 64

Last updated 2025-08-13

No results posted yet for this study

Summary

Ataxia is a neurological disorder affecting coordination, caused by damage to the cerebellum, brainstem, or related pathways. It can be hereditary (e.g., Friedreich's ataxia) or acquired (e.g., multiple sclerosis, stroke). Though rare, ataxia significantly impacts quality of life and independence. Treatments are limited and mainly focus on multidisciplinary rehabilitation. Accurate assessment is essential, yet current tools like Scale for the Assessment and Rating of Ataxia (SARA) have limitations. This study aims to validate a new scale, named the Ataxia Trunk, Lower And upper extremity Scale (ATLAS), through Rasch analysis, to develop a shorter, reliable version. It will assess internal consistency, construct validity, and inter-rater reliability.

For the valitdity part, statistics will be used (1) to see if the different items of the scale are indeed different and complementary to each other, and (2) to compare the results of this scale with other scales already known and valid (SARA, Trunk Impairment Scale (TIS) and Functional Impairment Measurement(FIM)). Secondly, the investigators would like to know whether ATLAS is reliable. In this particular case, the reliability being assessed is inter-rater reliability, i.e. whether all raters give the same score on the items performed by the patient. To carry out such a study, 64 people will be needed to achieve these goals. Each person will complete the 20 items of the ATLAS scale, those of a trunk motor capacity assessment (TIS), and will evaluate his or her functional independence (FIM).

Conditions

  • Ataxia, Cerebellar
  • Ataxia, Gait
  • Ataxia, Motor
  • Ataxia
  • Ataxia, Spinocerebellar
  • Ataxias, Hereditary
  • Ataxia - Other

Interventions

OTHER

New Scale to evaluate ataxia motor symptoms

The Ataxia Trunk, Lower And upper extremity Scale (ATLAS) is a new scale. It differs from other Ataxia Scale by focusing on the assessment of coordination abilities of specific body segments: the trunk, lower limbs, and upper limbs.

Sponsors & Collaborators

  • Haute Ecole de Santé Vaud

    lead OTHER

Principal Investigators

  • Sylvie Ferchichi-Barbey, Master · HESAV School of Health Sciences - Vaud, HES-SO University of Applied Sciences and Arts Western Switzerland

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-09-01
Primary Completion
2028-12-31
Completion
2028-12-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07079332 on ClinicalTrials.gov