Influence of Visual Dependence on Inter-Segmental Coordination during Upright Stance in Cerebral Palsy

Yawen Yu, Carole A. Tucker, Richard T. Lauer, Emily A. Keshner

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The presence of visual dependence as an influential factor on the development of functional stability in ambulatory individuals with cerebral palsy (CP) was studied in 22 adults with spastic bilateral CP, 11 of whom were considered visually dependent, and 18 healthy adults. Participants stood upright during pitch plane disturbances of the visual field and support surface. Intersegmental coordination behaviors were assessed by fitting trajectories of adjacent body segments to an ellipse. Mixed-model repeated measures ANOVAs were performed on ellipse orientation angle and area. Dissimilar stabilizing strategies adopted by the two groups with CP imply that visual dependence impacts postural control. Postural reorganization in response to visual flow in all groups indicates that we cannot ignore perceptual aspects of postural control when designing therapeutic interventions.

Original languageEnglish (US)
Pages (from-to)249-261
Number of pages13
JournalJournal of Motor Behavior
Volume52
Issue number3
DOIs
StatePublished - May 3 2020
Externally publishedYes

Keywords

  • balance
  • optic flow
  • rehabilitation
  • virtual reality

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience

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