TY - CHAP M1 - Book, Section TI - A Review of Movement Disorders in the Pediatric Patient A1 - Blackburn, Joanna S. A2 - Mitra, Raj Y1 - 2019 N1 - T2 - Principles of Rehabilitation Medicine AB - Movements disorders are neurologic syndromes that involve impaired performance of voluntary movements, dysfunction of posture, the presence of abnormal involuntary movements, or the performance of normal-appearing movements at inappropriate or unintended times.1,2 These movement abnormalities are not due to weakness or spasticity. Movement disorders are traditionally divided into hyperkinetic disorders and hypokinetic disorders. Hyperkinetic movement disorders are characterized by an excess of movement, whereas hypokinetic movement disorders are characterized by a paucity of movement. In childhood, hyperkinetic movement disorders are far more common than hypokinetic movement disorders. Hyperkinetic movement disorders include tics, stereotypies, chorea, athetosis, ballism, dystonia, myoclonus, and tremor. The primary hypokinetic movement disorder is parkinsonism, which is characterized by bradykinesia, tremor, rigidity, and postural instability. Parkinson's disease, which is the most common hypokinetic movement disorder in adults, is exceedingly rare in children. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accessphysiotherapy.mhmedical.com/content.aspx?aid=1182781941 ER -