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dc.contributor.authorKarimpour, Rana
dc.date.accessioned2013-12-13T13:14:45Z
dc.date.available2013-12-13T13:14:45Z
dc.date.issued2013
dc.identifier.otheroai:jykdok.linneanet.fi:1290240
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/42654
dc.description.abstractInterpolated twitch technique is a method frequently used to assess voluntary activa- tion. This method uses electrically evoked twitch superimposed on the voluntary activi- ty and its comparison with the twitch in rested muscle i.e. control twitch, to evaluate completeness of muscle activation. The purpose of this study was to investigate the ef- fect of interval in paired stimulation on control twitch in young and elderly individuals with bent and flexed knee positions. Supramaximal electrical stimulation consisted of one single stimulus and eight paired stimulation with intervals from 5 to 40ms, with increments of 5ms. In evoked twitches normalized peak torque amplitude (NPT), time to peak torque (TPT), half-relaxation time (HRT), maximal rate of torque development (RTD) were calculated. Although all parameters were slightly different in young adults compared to elder ones, the difference reached significance only in shorter TPT and HRT for the former, a phenomenon attributed to the slowing of muscle contractile me- chanics with ageing. In both groups the highest RTD and NPT were observed with shorter inter-stimulus intervals i.e. 5 and 10ms. This may be attributed to a summation effect and/or a less time available for the longer-latency reflex effects of electrical stim- ulation to affect the torque.en
dc.format.extent1 verkkoaineisto.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.rightsThis publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.en
dc.rightsJulkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty.fi
dc.subject.otheritt
dc.subject.otherinterpolated twitch technique
dc.subject.othervoluntary activation
dc.subject.otherdoublet
dc.subject.otherpaired stimuli
dc.titleOptimal inter-stimulus interval for interpolated twitch technique when using double pulse stimulation
dc.identifier.urnURN:NBN:fi:jyu-201312132796
dc.type.dcmitypeTexten
dc.type.ontasotPro gradu -tutkielmafi
dc.type.ontasotMaster’s thesisen
dc.contributor.tiedekuntaLiikuntatieteellinen tiedekuntafi
dc.contributor.tiedekuntaFaculty of Sport and Health Sciencesen
dc.contributor.laitosLiikuntabiologian laitosfi
dc.contributor.laitosDepartment of Biology of Physical Activityen
dc.contributor.yliopistoUniversity of Jyväskyläen
dc.contributor.yliopistoJyväskylän yliopistofi
dc.contributor.oppiaineBiomekaniikkafi
dc.contributor.oppiaineBiomechanicsen
dc.date.updated2013-12-13T13:14:45Z
dc.rights.accesslevelopenAccessfi
dc.type.publicationmasterThesis
dc.contributor.oppiainekoodi5012
dc.subject.ysobiomekaniikka
dc.subject.ysoärsykkeet
dc.subject.ysolihakset
dc.format.contentfulltext
dc.type.okmG2


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