Näytä suppeat kuvailutiedot

dc.contributor.authorFinni Juutinen, Taija
dc.contributor.authorCronin, Neil
dc.contributor.authorMayfield, D.
dc.contributor.authorLichtwark, G. A.
dc.contributor.authorCresswell, A. G.
dc.date.accessioned2017-07-10T07:54:40Z
dc.date.available2017-07-10T07:54:40Z
dc.date.issued2017
dc.identifier.citationFinni Juutinen, T., Cronin, N., Mayfield, D., Lichtwark, G. A., & Cresswell, A. G. (2017). Effects of muscle activation on shear between human soleus and gastrocnemius muscles. <i>Scandinavian Journal of Medicine and Science in Sports</i>, <i>27</i>(1), 26-34. <a href="https://doi.org/10.1111/sms.12615" target="_blank">https://doi.org/10.1111/sms.12615</a>
dc.identifier.otherCONVID_25454238
dc.identifier.otherTUTKAID_68666
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/54899
dc.description.abstractLateral connections between muscles provide pathways for myofascial force transmission. To elucidate whether these pathways have functional roles in vivo, we examined whether activation could alter the shear between the soleus (SOL) and lateral gastrocnemius (LG) muscles. We hypothesized that selective activation of LG would decrease the stretch-induced shear between LG and SOL. Eleven volunteers underwent a series of knee joint manipulations where plantar flexion force, LG, and SOL muscle fascicle lengths and relative displacement of aponeuroses between the muscles were obtained. Data during a passive full range of motion were recorded, followed by 20° knee extension stretches in both passive conditions and with selective electrical stimulation of LG. During active stretch, plantar flexion force was 22% greater (P < 0.05) and relative displacement of aponeuroses was smaller than during passive stretch (P < 0.05). Soleus fascicle length changes did not differ between passive and active stretches but LG fascicles stretched less in the active than passive condition when the stretch began at angles of 70° and 90° of knee flexion (P < 0.05). The activity-induced decrease in the relative displacement of SOL and LG suggests stronger (stiffer) connectivity between the two muscles, at least at flexed knee joint angles, which may serve to facilitate myofascial force transmission.
dc.language.isoeng
dc.publisherJohn Wiley & Sons Ltd; Scandinavian Foundation of Medical Science in Sports
dc.relation.ispartofseriesScandinavian Journal of Medicine and Science in Sports
dc.subject.otheractivation-dependent
dc.subject.otheraponeurosis
dc.subject.othermuscle contraction
dc.subject.othermuscle stretch
dc.subject.othermyofascial force transmission
dc.subject.othershear strain
dc.subject.othertendon
dc.titleEffects of muscle activation on shear between human soleus and gastrocnemius muscles
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201707103270
dc.contributor.laitosLiikuntatieteellinen tiedekuntafi
dc.contributor.laitosFaculty of Sport and Health Sciencesen
dc.contributor.oppiaineBiomekaniikkafi
dc.contributor.oppiaineBiomechanicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2017-07-10T06:15:05Z
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.format.pagerange26-34
dc.relation.issn0905-7188
dc.relation.numberinseries1
dc.relation.volume27
dc.type.versionacceptedVersion
dc.rights.copyright© 2015 John Wiley & Sons A/S. This is a final draft version of an article whose final and definitive form has been published by Wiley. Published in this repository with the kind permission of the publisher.
dc.rights.accesslevelopenAccessfi
dc.relation.doi10.1111/sms.12615
dc.type.okmA1


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