Show simple item record

dc.contributor.authorHanyu, Pan
dc.date.accessioned2024-06-26T10:48:19Z
dc.date.available2024-06-26T10:48:19Z
dc.date.issued2024
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/96170
dc.description.abstractRunning is one of the most popular physical activities in the world. However, running is an impact activity that can lead to overuse injuries such as tibia stress fractures and patellofemoral pain syndrome. It is reported that both inter-limb asymmetries and fatigue are risk factors for non-contact injuries (Heil et al., 2020). Thus, this thesis aimed to examine the impact of running-induced fatigue on lower extremity symmetry in recreational runners. Twenty recreational runners were recruited in this study. Participants performed a fatigue protocol on a motorized treadmill, marker trajectories were collected before and after the fatigue protocol using a Vicon eight-camera motion capture system. OpenSim (Delp et al., 2007) was used for calculating hip, knee, and ankle joint kinematics. Inter-limb asymmetries can be analyzed using discrete and continuous methods. Symmetry angle (SA) is the measurement to quantify the differences between the lower extremities. SA serves as a robust tool since it is a dimensionless metric without the reference number. A Wilcoxon signed-rank test was used to compare the SA for joint angles before and after fatigue protocol. In comparison, Statistical parametric mapping (SPM) as a continuous analysis was applied to the pre- and post-fatigue measurement to analyze the time series data. After fatigue, the SA of the hip peak abduction angle significantly decreased by 7.9% after the running-induced fatigue protocol (p=0.021). Meanwhile, the SA of peak internal rotation after fatigue was significantly higher (9.8%) than that before fatigue (p=0.023). However, SPM results failed to show any difference in the pre- and post-fatigue measurements between the limbs. Although SA has been successfully proved as a reliable indicator to quantify symmetry, future studies should consider continuity by using time-series symmetry indices.en
dc.format.extent69
dc.language.isoen
dc.subject.othersymmetry angle
dc.subject.otherstatistical parametric mapping
dc.subject.otherrunning-induced fatigue
dc.subject.otherrecreational runners
dc.titleEffect of fatigue on lower extremity symmetry in recreational runners
dc.identifier.urnURN:NBN:fi:jyu-202406265014
dc.type.ontasotMaster’s thesisen
dc.type.ontasotPro gradu -tutkielmafi
dc.contributor.tiedekuntaLiikuntatieteellinen tiedekuntafi
dc.contributor.tiedekuntaFaculty of Sport and Health Sciencesen
dc.contributor.laitosLiikunta- ja terveystieteetfi
dc.contributor.laitosSport and Health Sciencesen
dc.contributor.yliopistoJyväskylän yliopistofi
dc.contributor.yliopistoUniversity of Jyväskyläen
dc.contributor.oppiaineBiomekaniikkafi
dc.contributor.oppiaineBiomechanicsen
dc.rights.copyrightJulkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty.fi
dc.rights.copyrightThis publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.en
dc.contributor.oppiainekoodi5012
dc.subject.ysojuoksu
dc.subject.ysobiomekaniikka
dc.subject.ysoväsymys
dc.subject.ysosymmetria
dc.subject.ysorunning
dc.subject.ysobiomechanics
dc.subject.ysofatigue (biological phenomena)
dc.subject.ysosymmetry


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record