History dependence of force production in submaximal stimulated rat medial gastrocnemius muscle

Kenneth Meijer

    Research output: Contribution to journalArticleAcademicpeer-review

    18 Citations (Scopus)

    Abstract

    Studies on maximal stimulated muscle have shown that history dependence is an integral part of muscle force production. The purpose of this study was to evaluate the history dependent effects in submaximal stimulated muscle. For this purpose, lengthening and shortening experiments were performed on the medial gastrocnemius muscle of the rat. The length dependence of lengthening induced force enhancement and shortening induced force depression was studied in maximal (80 Hz) and submaximal (30 Hz) stimulated muscles. The most important results of this study are (a) submaximal stimulation reduces the maximal amplitude of the history effects and (b) lengthening induced force enhancement and shortening induced force deficit are affected differently by submaximal stimulation. The implication of these results for the underlying mechanism and functional relevance of the history dependent effects is discussed.
    Original languageEnglish
    Pages (from-to)463-470
    JournalJournal of Electromyography and Kinesiology
    Volume12
    Issue number6
    DOIs
    Publication statusPublished - 2002

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