Electromechanical delay in the tibialis anterior muscle during time-varying ankle dorsiflexion

A. Úbeda, A. Del Vecchio, M. Sartori, S. T. Puente, F. Torres, J. M. Azorín, Dario Farina

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

    6 Citations (Scopus)

    Abstract

    We evaluated the electromechanical delay (EMD) for the tibialis anterior (TA) muscle during the performance of time-varying ankle dorsiflexions. Subjects were asked to track a sinusoidal trajectory, for a range of amplitudes and frequencies. Motor unit (MU) action potential trains were identified from surface electromyography (EMG) decomposition and summed to generate the cumulative spike train (CST). CST and the exerted force were cross-correlated to identify the delay between the CST and force, which was considered as an estimate of the EMD. The results showed that the EMD decreased logarithmically with the increase in the slope of the force produced.

    Original languageEnglish
    Title of host publication2017 International Conference on Rehabilitation Robotics, ICORR 2017
    PublisherIEEE Computer Society
    Pages68-71
    Number of pages4
    ISBN (Electronic)9781538622964
    DOIs
    Publication statusPublished - 11 Aug 2017
    EventIEEE 15th International Conference on Rehabilitation Robotics, ICORR 2017 - QEII Centre, London, United Kingdom
    Duration: 17 Jul 201720 Jul 2017
    Conference number: 15
    http://www.icorr2017.org/

    Conference

    ConferenceIEEE 15th International Conference on Rehabilitation Robotics, ICORR 2017
    Abbreviated titleICORR 2017
    CountryUnited Kingdom
    CityLondon
    Period17/07/1720/07/17
    Internet address

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