Hallervorden-Spatz Disease

Dystonic Disorder
Dystonia is a group of complex neurological movement disorders. While the disorders vary in their symptoms, causes, progression, and treatment, dystonia is characterized by involuntary muscle contractions and spasms that result in abnormal posture...  More »
Gale Encyclopedia of Genetic Disorders Part I

General Weakness
Weakness is a reduction in the strength of one or more muscles.  More »
ADAM

Muscle Spasticity
Spasticity is stiff or rigid muscles with exaggerated, deep tendon reflexes (for example, a knee-jerk reflex. The condition can interfere with walking, movement, or speech. See also: Muscle cramps  More »
ADAM