Rapid Alternating Movement (Cerebellum) Physical Exam Video

Rapid Alternating Movement:

Dysdiadochokinesis is the clinical term for an inability to perform rapidly alternating movements. Dysdiadochokinesia is usually caused by multiple sclerosis in adults and cerebellar tumors in children. Note that patients with other movement disorders (e.g. Parkinson’s disease) may have abnormal rapid alternating movement testing secondary to akinesia or rigidity, thus creating a false impression of dysdiadochokinesia.


This video tutorial on Rapid Alternating Movement has been provided by: MDforALL
How to do Rapid Alternating Movement:
Ask the patient to place their hands on their thighs and then rapidly turn their hands over and lift them off their thighs. Once the patient understands this movement, tell them to repeat it rapidly for 10 seconds. Normally this is possible without difficulty. This is considered a rapidly alternating movement.

Rapid Alternating Movement physical examination video tutorial

Rapid Alternating Movementt physical examination tutorial

References for Rapid Alternating Movement:
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