Directly to content
  1. Publishing |
  2. Search |
  3. Browse |
  4. Recent items rss |
  5. Open Access |
  6. Jur. Issues |
  7. DeutschClear Cookie - decide language by browser settings

Kinematic Assessment of Stereotypy in Spontaneous Movements in Infants

Karch, Dominik ; Kang, Keun-Sun ; Wochner, Katarzyna ; Philippi, Heike ; Hadders-Algra, Mijna ; Pietz, Joachim ; Dickhaus, Hartmut

In: Gait & Posture , (2012),

[thumbnail of kinematic_assessment.pdf]
Preview
PDF, English
Download (269kB) | Terms of use

Citation of documents: Please do not cite the URL that is displayed in your browser location input, instead use the DOI, URN or the persistent URL below, as we can guarantee their long-time accessibility.

Abstract

Movement variation constitutes a crucial feature of infant motor development. Reduced variation of spontaneous infant movements, i.e. stereotyped movements, may indicate severe neurological deficit at an early stage. Hitherto evaluation of movement variation has been mainly restricted to subjective assessment based on observation. This article introduces a method for quantitative assessment yielding an objective definition of stereotyped movements which may be used for the prognosis of neurological deficits such as cerebral palsy (CP). Movements of 3-months-old infants were recorded with an electromagnetic tracking system facilitating the analysis of joint angles of the upper and lower limb. A stereotypy score based on dynamic time warping has been developed describing movements which are self-similar in multiple degrees of freedom. For clinical evaluation, this measure was calculated in a group of infants at risk for neurological disorders (n=54) and a control group of typically developing children (n=21) on the basis of spontaneous movements at the age of three months. The stereotypy score was related to outcome at the age of 24 months in terms of CP (n=10) or no-CP (n=53). Using the stereotypy score of upper limb movements CP cases could be identified with a sensitivity of 90% and a specificity of 96%. The corresponding score of the leg movements did not allow for valid discrimination of the groups. The presented stereotypy feature is a promising candidate for a marker that may be used as a simple and noninvasive quantitative measure in the prediction of CP. The method can be adopted for the assessment of infant movement variation in research and clinical applications.

Document type: Article
Journal or Publication Title: Gait & Posture
Date Deposited: 05 Jul 2012 14:49
Date: 2012
Faculties / Institutes: Medizinische Fakultät Heidelberg > Institut für Medizinische Biometrie und Informatik
DDC-classification: 610 Medical sciences Medicine
Controlled Keywords: Cerebrale Kinderlähmung, Bewegungsmuster
Uncontrolled Keywords: Stereotype Bewegungen , kindliche SpontanmotorikStereotyped movements , Spontaneous movements in infants
About | FAQ | Contact | Imprint |
OA-LogoDINI certificate 2013Logo der Open-Archives-Initiative