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dc.contributor.authorCronin, Neilen_US
dc.contributor.authorCarty, Chrisen_US
dc.contributor.authorBarrett, Roden_US
dc.date.accessioned2017-05-03T13:05:34Z
dc.date.available2017-05-03T13:05:34Z
dc.date.issued2011en_US
dc.date.modified2011-10-07T04:29:47Z
dc.identifier.issn19326203en_US
dc.identifier.doi10.1371/journal.pone.0023917en_AU
dc.identifier.urihttp://hdl.handle.net/10072/41206
dc.description.abstractDuring human running, short latency stretch reflexes (SLRs) are elicited in the triceps surae muscles, but the function of these responses is still a matter of controversy. As the SLR is primarily mediated by Ia afferent nerve fibres, various methods have been used to examine SLR function by selectively blocking the Ia pathway in seated, standing and walking paradigms, but stretch reflex function has not been examined in detail during running. The purpose of this study was to examine triceps surae SLR function at different running speeds using Achilles tendon vibration to modify SLR size. Ten healthy participants ran on an instrumented treadmill at speeds between 7 and 15 km/h under 2 Achilles tendon vibration conditions: no vibration and 90 Hz vibration. Surface EMG from the triceps surae and tibialis anterior muscles, and 3D lower limb kinematics and ground reaction forces were simultaneously collected. In response to vibration, the SLR was depressed in the triceps surae muscles at all speeds. This coincided with short-lasting yielding at the ankle joint at speeds between 7 and 12 km/h, suggesting that the SLR contributes to muscle stiffness regulation by minimising ankle yielding during the early contact phase of running. Furthermore, at the fastest speed of 15 km/h, the SLR was still depressed by vibration in all muscles but yielding was no longer evident. This finding suggests that the SLR has greater functional importance at slow to intermediate running speeds than at faster speeds.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherPublic Library of Scienceen_US
dc.publisher.placeUnited Statesen_US
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefrome23917-1en_US
dc.relation.ispartofpagetoe23917-6en_US
dc.relation.ispartofissue8en_US
dc.relation.ispartofjournalPloS Oneen_US
dc.relation.ispartofvolume6en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchBiomechanicsen_US
dc.subject.fieldofresearchcode110601en_US
dc.titleTriceps Surae Short Latency Stretch Reflexes Contribute to Ankle Stiffness Regulation during Human Runningen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Health, School of Allied Health Sciencesen_US
gro.date.issued2011
gro.hasfulltextNo Full Text


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