The complex nature of the postural control system makes it vulnerable to adverse conditions during early life, such as prenatally or perinatally acquired lesions of the brain or preterm birth. Children with disorders of the developing brain nearly always have dysfunctions in postural control. The postural control system of children with other neurodevelopmental disabilities such as myelomeningocele or muscle disease is also challenged: it has to find age-specific solutions for the postural problems posed by the disorder. These...