individuals with a genetically confirmed diagnosis of SCA-1

individuals with a genetically confirmed diagnosis of SCA-2

individuals with a genetically confirmed diagnosis of SCA-3

individuals with a genetically confirmed diagnosis of SCA-6

individuals with a genetically confirmed diagnosis of FA

Healthy, age-matched controls

Healthy, age-matched controls

measurements collected by wearable inertial sensors during instrumented Scale for the Assessment and Rating of Ataxia (iSARA)

Scale for the Assessment and Rating of Ataxia (SARA) measurements evaluated by clinician to measure severity of spinocerebellar ataxia through coordination, speech, stance, and gait

modified Friedreich's Ataxia Rating Scale (mFARS) measurements evaluated by clinician compared to measure severity of Friedreich's ataxia through coordination, speech, stance, and gait

APDM SmartSox technology used to measure daily life activity(movement, falls, etc.) of all University of Chicago subjects

Bi-weekly assessments completed on Ataxia Application for Apple Watches and iPhones. Data collected includes active monitoring of speech, stance, coordination, gait and patient-reported symptoms.

Activities, Balance, and Confidence (ABC) Questionnaire; EQ-5D-5L Health Questionnaire; Modified Fatigue Impact Scale (MFIS-5); Activities of Daily Living (ADLs)

Automatic email sent out to subjects inquiring about any falls and near falls they have experienced during the past month