Mechanisms for disturbed motor coordination in stroke: An analysis of voluntary movement trajectories

W. Z. Rymer, R. Beer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Analyses of hand movement planar trajectories in paretic and contralateral arms of hemiparetic stroke patients indicate that there are disturbances in all phases of limb motion, including the initial movement direction, in mid-course trajectory, and in the terminal deceleration phase associated with movement termination. Analyses of movement kinematic and kinetic characteristics and of concurrent electromyograms suggest that trajectory disturbances are mediated by several deficits. These include disruption of spatial coordinate frameworks specifying motion direction, loss of internal models of limb mechanical behavior, and in some muscles, by inappropriate stretch reflex action in antagonist muscles.

Original languageEnglish (US)
Title of host publicationPediatric Gait
Subtitle of host publicationA New Millennium in Clinical Care and Motion Analysis Technology
EditorsGerald F. Harris, Peter A. Smith
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages194-201
Number of pages8
ISBN (Electronic)0780364694, 9780780364691
DOIs
StatePublished - Jan 1 2000
Event22nd Annual International Conference on Shriners Pediatric Workshop/Symposium: A New Millennium of Discovery in Clinical Care and Motion Analysis Technology - Chicago, United States
Duration: Jul 23 2000Jul 28 2000

Publication series

NamePediatric Gait: A New Millennium in Clinical Care and Motion Analysis Technology

Other

Other22nd Annual International Conference on Shriners Pediatric Workshop/Symposium: A New Millennium of Discovery in Clinical Care and Motion Analysis Technology
CountryUnited States
CityChicago
Period7/23/007/28/00

Keywords

  • Movement trajectory
  • Spasticity
  • Stroke

ASJC Scopus subject areas

  • Biotechnology
  • Biomedical Engineering
  • Pediatrics, Perinatology, and Child Health

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  • Cite this

    Rymer, W. Z., & Beer, R. (2000). Mechanisms for disturbed motor coordination in stroke: An analysis of voluntary movement trajectories. In G. F. Harris, & P. A. Smith (Eds.), Pediatric Gait: A New Millennium in Clinical Care and Motion Analysis Technology (pp. 194-201). [858896] (Pediatric Gait: A New Millennium in Clinical Care and Motion Analysis Technology). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PG.2000.858896