Sensorimotor strategies in individuals with poststroke hemiparesis when standing up without vision

Yuko Kuramatsu, Yuji Yamamoto, Shin Ichi Izumi

Research output: Contribution to journalArticlepeer-review

Abstract

This study investigated the sensorimotor strategies for dynamic balance control in individuals with stroke by restricting sensory input that might influence task accomplishment. Sit-to-stand movements were performed with restricted vision by participants with hemiparesis and healthy controls. The authors evaluated the variability in the position of participants' center of mass and velocity, and the center-of-pressure position, in each orthogonal direction at the lift-off point. When vision was restricted, the variability in the mediolateral center-of-pressure position decreased significantly in individuals with hemiparesis, but not in healthy controls. Participants with hemiparesis adopted strategies that explicitly differed from those used by healthy individuals. Variability may be decreased in the direction that most requires accuracy. Individuals with hemiparesis have been reported to have asymmetrical balance deficits, and that meant they had to prioritize mediolateral motion control to prevent falling. This study suggests that individuals with hemiparesis adopt strategies appropriate to their characteristics.

Original languageEnglish
Pages (from-to)150-167
Number of pages18
JournalMotor Control
Volume24
Issue number1
DOIs
Publication statusPublished - 2020

Keywords

  • Center of pressure
  • Dynamic balance control
  • Falling
  • Motor learning
  • Whole-body movement

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Clinical Neurology
  • Physiology (medical)

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