Fatigue of intermittently stimulated quadriceps during imposed cyclical lower leg movements

Henry M. Franken, H.M. Franken, Petrus H. Veltink, Marc Fidder, H.B.K. Boom

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

    1 Citation (Scopus)
    41 Downloads (Pure)

    Abstract

    During prolonged experiments the influence of knee angular velocity, and stimulation parameters (interpulse interval (IPI), duty cycle (DC), number of pulses per cycle (NP)) on fatigue-induced torque decline of paralyzed human quadriceps was studied. Identification of torque-angle and -angular velocity was also performed. The overall loss of maximum torque (MT) and torque-time integral ('lTI) per cycle during sustained intermittent stimulation during isokinetic movement had a typical exponential decay reaching asymptotic values. Larger knee velocities resulted in a significantly faster and relative larger decay of MT and TTI. The rate and relative magnitude of fatigue during concentric contractions are in direct relation to NP. The results may be valuable in the design of optimal control systems for FES which pursue minimization of muscle fatigue.
    Original languageUndefined
    Title of host publicationProceeding of the 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
    Place of PublicationParis, France
    PublisherIEEE
    Pages1341-1342
    Number of pages2
    ISBN (Print)9780780307858
    Publication statusPublished - 29 Oct 1992
    Event14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 1992 - Paris, France
    Duration: 29 Oct 19921 Nov 1992
    Conference number: 14

    Publication series

    Name
    PublisherIEEE

    Conference

    Conference14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 1992
    Abbreviated titleEMBC
    CountryFrance
    CityParis
    Period29/10/921/11/92

    Keywords

    • IR-16793
    • METIS-113678

    Cite this

    Franken, H. M., Franken, H. M., Veltink, P. H., Fidder, M., & Boom, H. B. K. (1992). Fatigue of intermittently stimulated quadriceps during imposed cyclical lower leg movements. In Proceeding of the 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (pp. 1341-1342). Paris, France: IEEE.