The Altered Time Course of Tension Development during the Initiation of Fast Movement in Hemiplegic Patients

Ichiro Tsuji, Ryuichi Nakamura

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

The time course of tension development produced by fast isometric contraction of the quadriceps femoris muscle for knee extension was examined on eight normal subjects and 14 patients with spastic hemiparesis due to stroke. Tension lag time (TLT), the latency from the onset of EMG activities to the rise of tension, and contraction time (FTmax), the period from the rise of tension to its maximum, were longer in the patients than in the normal subjects. The prolongation of FTmax correlated with the decreased rate of tension development. The results indicated that the temporal characteristics of tension development altered in the spastic paresis, reflecting functional changes in the muscle and motor neurons.

Original languageEnglish
Pages (from-to)137-143
Number of pages7
Journalthe tohoku journal of experimental medicine
Volume151
Issue number2
DOIs
Publication statusPublished - 1987 Jan 1

Keywords

  • rapid force generation
  • spastic muscle
  • time course

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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