Neural Modulation of Leg Stiffness in Response to Neuromuscular Fatigue

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dc.contributor.advisorShim, Jae Kunen_US
dc.contributor.advisorMiller, Ross Hen_US
dc.contributor.authorChu, Edwarden_US
dc.contributor.departmentKinesiologyen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2016-09-07T05:35:11Z
dc.date.available2016-09-07T05:35:11Z
dc.date.issued2016en_US
dc.description.abstractThe spring-mass model is able to accurately represent hopping spring-like behavior (leg and joint stiffness), and leg and joint stiffness changes can reveal overall motor control responses to neural and muscular contributors of neuromuscular fatigue. By understanding leg stiffness modulation, we can determine which variables the nervous system targets to maintain motor performance and stability. The purpose of this study was to determine how neuromuscular fatigue affects hopping behavior by examining leg and joint stiffness before and after a single-leg calf raise fatiguing protocol. Post-fatigue, leg stiffness decreased for the exercised leg, but not for the non-exercised leg. Ankle and knee joint stiffness did not significantly change for either leg. This indicates that leg stiffness decreases primarily from muscular fatigue, but was not explained by ankle and knee joint stiffness. The decrease in leg stiffness may be an attempt to soften landing impact, while at the same time maintaining performance.en_US
dc.identifierhttps://doi.org/10.13016/M2X80S
dc.identifier.urihttp://hdl.handle.net/1903/18667
dc.language.isoenen_US
dc.subject.pqcontrolledBiomechanicsen_US
dc.subject.pqcontrolledNeurosciencesen_US
dc.subject.pquncontrolledFatigueen_US
dc.subject.pquncontrolledJoint Stiffnessen_US
dc.subject.pquncontrolledLeg Stiffnessen_US
dc.subject.pquncontrolledLocomotionen_US
dc.subject.pquncontrolledMotor Controlen_US
dc.subject.pquncontrolledNeuromuscularen_US
dc.titleNeural Modulation of Leg Stiffness in Response to Neuromuscular Fatigueen_US
dc.typeThesisen_US

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