Exam

Rapid Alternating Movements

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Rapid Alternating Movements, Diadochokinesia, Dysdiadochokinesia

  • See Also
  1. Cerebellar Function Test
  2. Finger-Nose-Finger Test
  3. Heel Knee Shin Test
  4. Romberg Test
  • Indications
  1. Cerebellar Testing of Diadochokinesia (Rapid Alternating Movements)
  1. Patient rests the dorsum of one hand against their thigh or other hand
  2. Patient flips their hand over, palm side up
  3. Patient repeats hand flipping as quickly as they can (generating a slap sound with each flip)
  • Technique
  • Alternative
  1. Tap each finger tip against the thumb of the same hand
  2. Move from one finger to the next, each tapping the pad of the thumb
  • Interpretation
  1. Abnormal testing (Dysdiadochokinesia) suggests cerebellar or coordination dysfunction