Dysdiadochokinesia

Dysdiadochokinesia (pronounced dis-ˌdī-ə-ˌdä-kō-ki-ˈnē-zē-ə) is a medical term that refers to the inability to perform rapid, alternating movements. It is often a symptom of cerebellar dysfunction, particularly lesions in the cerebellum's lateral hemisphere and the posterior lobe.

Etymology

The term "Dysdiadochokinesia" comes from the Greek words "dys" meaning bad or difficult, "diadocho" meaning successive or alternating, and "kinesia" meaning movement.

Symptoms

Patients with dysdiadochokinesia may have difficulty with tasks such as rapidly tapping their fingers together or quickly pronating and supinating their hands. These tasks require the ability to quickly switch between muscle groups, which is impaired in dysdiadochokinesia.

Diagnosis

Diagnosis of dysdiadochokinesia is typically made through a neurological examination. The Finger-Nose Test and Rapid Alternating Movement Test are commonly used to assess for this condition.

Treatment

Treatment for dysdiadochokinesia typically involves addressing the underlying cause of the cerebellar dysfunction. This may include medications, surgery, or physical therapy.

Related Terms

• Cerebellum
• Ataxia
• Neurology
• Finger-Nose Test
• Rapid Alternating Movement Test

External links

• Medical encyclopedia article on Dysdiadochokinesia
• Wikipedia's article - Dysdiadochokinesia

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