Some factors affecting eccentric contraction strength

Y. Kawakami, T. Fukunaga, H. Kanehisa, M. Miyashita

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

Properties of the force developed during eccentric contractions were investigated using a specially designed dynamometer. Elbow flexion was performed at the maximal voluntary contraction level. A force transducer was placed on the anterior surface of the wrist to measure elbow flexion force. Immediately after an isometric contraction of 2 seconds (ST1), the elbow joint was eccentrically stretched about 15° (ECC), and again put in an isometric state (ST2). Starting elbow angles were randomly assigned every 15° from 70° to 130° (full extension 180°) and stretch speeds ranged from 2.5 to 20 rpm. The muscle force during ECC was always greater than those during ST1 and ST2, and the difference between starting isometric force and eccentric peak force was greater at a higher speed.

Original languageEnglish
Number of pages1
JournalJournal of Biomechanics
Volume22
Issue number10
DOIs
Publication statusPublished - 1989 Jan 1
EventAbstracts of the XII Congress, International Society of Biomechanics - Los Angeles, CA, USA
Duration: 1989 Jun 261989 Jun 30

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Biomedical Engineering
  • Rehabilitation

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