The effects of movement velocity, mass displaced, and task certainty on associated postural adjustments made by normal and hemiplegic individuals

F. B. Horak, P. Esselman, M. E. Anderson, M. K. Lynch

Research output: Contribution to journalArticlepeer-review

300 Scopus citations

Abstract

The activation times for trunk and leg muscles were examined in normal and left hemiplegic subjects who raised their right arms at different velocities in self-paced or reaction time conditions. Activity in these postural muscles preceded arm displacement, and they were activated in a similar sequence during all types of rapid movements. The presence and sequencing of associated postural adjustments were more variable during slow movements.

Original languageEnglish (US)
Pages (from-to)1020-1028
Number of pages9
JournalJournal of Neurology, Neurosurgery and Psychiatry
Volume47
Issue number9
DOIs
StatePublished - 1984

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology
  • Psychiatry and Mental health

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