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
CountryGermany
CityCologne
Period14/06/1718/06/17

Keywords

  • peak
  • variability
  • frequency
  • entropy

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