title: Motor and Cognitive Developmental Profiles in Children With Down Syndrome.
abstract: OBJECTIVE
  To investigate motor and cognitive developmental profiles and to evaluate the correlation between two developmental areas and assess the influencing factors of the developmental process in children with Down syndrome (DS).
  
  
  METHODS
  Seventy-eight children with DS participated in this study. The medical history was taken and motoric milestone achievements recorded. The Korean Wechsler Preschool and Primary Scale of Intelligence (K-WPPSI) and Bayley Scales of Infant Development-II (BSID-II) were administered. Subjects were divided into severe motor delay group (severe group) and typical motor delay group (typical group).
  
  
  RESULTS
  Children with DS follow the same sequence of motor development and generally displayed double times of acquisition of developmental milestones compared with healthy children. Furthermore, having surgery for associated complications showed negative influence to the motor development. Almost of all children with DS showed moderate degree of intellectual disability and motor and cognitive development do not seem to correlate one another.
  
  
  CONCLUSIONS
  Surgery of associated complications can be negatively related to motor development. However, early motor development did not have any significant effects on the achievement of later cognitive functioning.
authors.affiliation: Department of Physical Medicine and Rehabilitation, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
authors.forename: Hyo In
authors.identifier: 0000-0003-0640-5597
authors.initials: HI
authors.lastname: Kim
authors.affiliation: Department of Physical Medicine and Rehabilitation, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
authors.forename: Seong Woo
authors.identifier: 0000-0002-1548-8147
authors.initials: SW
authors.lastname: Kim
authors.affiliation: Department of Physical Medicine and Rehabilitation, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
authors.forename: Jiyong
authors.identifier: 0000-0003-4693-8400
authors.initials: J
authors.lastname: Kim
authors.affiliation: Department of Physical Medicine and Rehabilitation, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
authors.forename: Ha Ra
authors.identifier: 0000-0002-4234-8086
authors.initials: HR
authors.lastname: Jeon
authors.affiliation: Department of Physical Medicine and Rehabilitation, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
authors.forename: Da Wa
authors.identifier: 0000-0002-2420-3553
authors.initials: DW
authors.lastname: Jung
keywords: Cognition; Down syndrome; Motor development