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Cerebellar and extra-pyramidal disorders

Ataxia Delayed initiation of movement---Errors in range and force of movement---Errors in rate and regularity of movement---Poor coordination of agonist and antagonist mm groups---wide based gait with little arm movement---fall on side of lesion (cerebellar)
Dysmetria ROM disorder where target is not reached initially. Hypermetria (too much) hypometria (too short).
Dyssynergia Voluteer movements appear jerky
Rebound phenomenon of Holmes Lack of check reflex where pt cannot stop a motion quickly.
Nystagmus Interferes with head control and fine adjustments required for balance.
Extra-pyramidal disorders characterized by hypokinesia or hyperkinesia
Chorea irregular, purposeless, involuntary, coarse, quick, jerky, dysrhymic movements. (Seen in tardive dyskinesia and Huntington's disease)
Tardive dyskinesia usually by neuroleptic drug use.
Huntington Disease Inherited, autosomal dominant disease. Ataxic gait and choreatic movements. Later will develop rigidity.
Athetoid Movements slow, wormlike, arrhythmic movements.
Created by: jeffjan01