SPASTIC CEREBRAL PALSY
Spasticity means rigidity. People with this kind of cerebral palsy have trouble controlling some or all of their muscles, which tend to get stretched and weakened. These patients can usually support their arms, legs, and head. Spastic cerebral palsy normally occurs when the nerve cells of an external layer of the brain or cortex fail to work properly. Spastic cerebral palsy affects 60–70% of all individuals with cerebral palsy.
ATHETOID/DYSKINETIC CEREBRAL PALSY
This type of CP is characterized by slow, involuntary, uncoordinated movements (aggravated by fatigue, alleviated by rest, and absent during sleep), which hinder voluntary activity. People with this kind of CP typically have muscles that change rapidly from slack to tense. Their arms and legs move uncontrollably, and it can become difficult to understand them because of trouble controlling their tongue, breathing, and vocal chords. Athetoid/dyskinetic cerebral palsy is due to failure by the central part of the brain to function correctly.
ATAXIC CEREBRAL PALSY
People with ataxic cerebral palsy have trouble controlling their balance because of brain injury. Depending on the extent of the injury, these people may be able to walk, albeit with poor stability.