Cerebellar Function Test Checklist

Assessment of Coordination, Balance, and Ataxia (Scoring 0-4)

Scoring: 0 = Normal, 4 = Severe Ataxia/Unable to Perform

1. Posture & Gait Tests

Posture: Sway / Stability (Romberg Test)

0 - Normal (Minimal sway) 1 - Mild unsteadiness 2 - Moderate sway / Requires supervision 3 - Severe sway / Unable to stand unsupported

Gait: Base of Support / Step Consistency

0 - Normal gait pattern 1 - Mild staggering / Widened base 2 - Moderate staggering / Obvious lateral deviation 3 - Severe staggering / Requires assist to ambulate

Tandem Walking (Heel to Toe)

0 - Normal (Able to take 10 steps) 1 - Able to take < 10 steps 2 - Unable to place heel to toe 3 - Unable to stand tandem unsupported

2. Limb Coordination (Dysmetria)

Finger-to-Nose Test (Accuracy/Tremor)

0 - Accurate and smooth movement 1 - Slight over/undershoot (Mild Dysmetria) 2 - Moderate excursion (Missing target > 2cm) 3 - Cannot reach target; severe tremor

Heel-to-Shin Test (Lower Limb Accuracy)

0 - Accurate and smooth movement 1 - Heel slightly slips off shin 2 - Marked deviation off shin; requires visual guidance 3 - Unable to maintain heel contact; severe instability

3. Speed & Rhythm (Dysdiadochokinesia)

Rapid Alternating Movements (RAM) - Hand Flip

0 - Normal rhythm and speed (No Dysdiadochokinesia) 1 - Slight slowness or mild hesitancy 2 - Moderate breakdown of rhythm; significant slowness 3 - Unable to perform rapidly; movements irregular

Rebound Phenomenon (Bicep Stretch)

0 - Normal reaction (Checks self immediately) 1 - Slight rebound overshoot 2 - Moderate overshoot (Hits self/significant recoil)

0.0

Select scores to generate analysis.

Clinical Interpretation (Cerebellar Ataxia)

**Ataxia:** The hallmark sign of cerebellar dysfunction. It is characterized by impaired coordination of voluntary muscle movement. [Image of cerebellar signs and symptoms]

**0-4 Scale:** This scoring system is adapted from standardized clinical ataxia rating scales, where 0 is normal and 4 is severely impaired. A high score across multiple domains suggests generalized cerebellar involvement.

**Testing Tip:** Always test movements on the **unaffected side first** to provide a baseline for comparison.

**References:** Adapted from Fahn-Tolosa-Marin Clinical Rating Scale (Modified) and standard neurological examination protocols.