A linear description of shortening induced changes in isometric length-force characteristics of rat muscle

K. Meijer, H.J. Grootenboer, Hubertus F.J.M. Koopman, P.A.J.B.M. Huijing

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)
66 Downloads (Pure)

Abstract

Active muscle shortening reduces the isometric force potential of muscle. This observation indicates that the isometric length-force characteristics are altered during muscle shortening. Post-shortening decrease in isometric force depends on starting length, shortening amplitude and shortening velocity. In the present study, post-shortening decrease in isometric force was determined after isokinetic contractions with various shortening amplitudes initiated from different lengths of rat medial gastrocnemius muscle. For a given target length post-shortening force decrease increased linearly with shortening amplitude. We found that the quotient of post-shortening force decrease and shortening amplitude depended linearly on muscle length. Based on our experimental results and those from other studies, we conclude that shortening induced changes in isometric length-force characteristics can be described by two simple functions. A linear function describing the influence of starting muscle length and shortening amplitude and an exponential function describing the influence of shortening velocity
Original languageUndefined
Title of host publicationProceedings 1996 IEEE/EMBS 18th Annual International Conference
Place of PublicationAmsterdam
PublisherIEEE
Pages-
Number of pages2
ISBN (Print)CD-ROM 90-90100
DOIs
Publication statusPublished - 30 Oct 1996
Event18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 1996: Bridging Disciplines for Biomedicine - Amsterdam, Netherlands
Duration: 31 Oct 19963 Nov 1996
Conference number: 18

Publication series

Name
PublisherIEEE
Volume2

Conference

Conference18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 1996
Abbreviated titleEMBC
CountryNetherlands
CityAmsterdam
Period31/10/963/11/96

Keywords

  • IR-32994
  • METIS-145270

Cite this