Force trace characteristics in anterior cruciate ligament deficient and uninjured knees during a maximal isometric task

Joe Moore, Dipak Raj, Genevieve Williams, Christopher Bridle, David Mullineaux

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Anterior cruciate ligament (ACL) deficiency has been shown to alter the muscle function of the leg. This study aimed to investigate differences in force trace characteristics of a maximal isometric task between ACL deficient and uninjured knees. Six ACL injured and uninjured participants completed maximal adduction, extension, and flexion isometric contractions. Peak, mean, standard deviation (SD), coefficient of variance (CV), frequency and signal regularity were calculated for all trials. Mean flexion force was larger in the ACL intact (0.91 N/kg) compared to their deficient (0.67 N/kg; p<0.05) knee. SD, CV and frequency composition of the extension trial differed between limbs in the uninjured (p<0.05). Analysis of variability, frequency and regularity of a signal may provide information on the function of the knee.
    Original languageEnglish
    Title of host publicationISBS Proceedings Archive
    EditorsWolfgang Potthast, Anja Niehoff, Sina David
    PublisherNorthern Michigan University
    Pages1152-1155
    Number of pages4
    Publication statusPublished - 27 Oct 2017
    Event35th Conference of the International Society of Biomechanics in Sport - German Sport University Cologne, Cologne, Germany
    Duration: 14 Jun 201718 Jun 2017

    Conference

    Conference35th Conference of the International Society of Biomechanics in Sport
    Country/TerritoryGermany
    CityCologne
    Period14/06/1718/06/17

    Keywords

    • peak
    • variability
    • frequency
    • entropy

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