EMG and mechanomyogram changes in fresh and fatigued muscle during sustained contraction in humans

F. Esposito, A. Veicsteinas, C. Orizio

Research output: Contribution to journalArticlepeer-review

Abstract

Aim of this study was to evaluate the persistence of the fatigue-induced changes in motor unit (MU) electrical and mechanical properties after a short period of recovery. In 7 subjects the force, EMG and mechanomyogram (MMG) were recorded from m. biceps brachii during a 20 s isometric effort at 80% of the maximal voluntary contraction (MVC), before (test 1) and 10 min after (test 2) an intermittent fatiguing exercise (6 s on - 4 s off cycles at 50% MVC). It resulted that: a) the MVC was 412±90 N (mean±SEM) and 304±85 N in fresh and fatigued muscle, resp. (P

Original languageEnglish
JournalFASEB Journal
Volume12
Issue number5
Publication statusPublished - Mar 20 1998

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Cell Biology

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