The aim of the study is to evaluate the effects on motor and cognitive performance of transcranial alternating current stimulation (tACS) compared to transcranial direct current stimulation (tDCS) and placebo stimulation (sham) in patients with neurodegenerative ataxia to identify a possible rehabilitation protocol.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
26
Single session of Transcranial stimulation over the cerebellar hemispheres
ASST Spedali Civili di Brescia
Brescia, BS, Italy
Change in the International Cooperative Ataxia Rating Scale (ICARS) Score From Baseline
International Cooperative Ataxia Rating Scale (ICARS): semi-quantitative 100-point scale, yielding a total score of 0 (no ataxia) to 100 (most severe ataxia).
Time frame: Baseline (immediately before the intervention) - Immediately after the intervention
Change in the Scale for the Assessment and Rating of Ataxia (SARA) Score From Baseline
Scale for the Assessment and Rating of Ataxia (SARA): 8-item performance based scale, yielding a total score of 0 (no ataxia) to 40 (most severe ataxia).
Time frame: Baseline (immediately before the intervention) - Immediately after the intervention
Change in Cerebellar Brain Inhibition (CBI) Measurements From Baseline
Cerebellar brain inhibition (CBI) is expressed as motor evoked potential amplitude (average of 10 recordings). Lower values reflect higher inhibition and thus reduced impairment.
Time frame: Baseline (immediately before the intervention) - Immediately after the intervention
Change in Timed Up and Go Test Duration From Baseline
Time (in seconds) that a person takes to rise from a chair, walk three meters, turn around 180 degrees, walk back to the chair, and sit down while turning 180 degrees, assessed with gait sensors.
Time frame: Baseline (immediately before the intervention) - Immediately after the intervention
Change in Walking Cadence From Baseline
Average Left and Right Steps/Minute during a 60 seconds walk, assessed with gait sensors.
Time frame: Baseline (immediately before the intervention) - Immediately after the intervention
Change in 360° Turn From Baseline
Velocity (Number of Degrees/sec) in making a 360° turn, assessed with gait sensors
Time frame: Baseline (immediately before the intervention) - Immediately after the intervention
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