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dc.contributor.advisorBauer, Tony
dc.contributor.authorPoling, Michael Peter
dc.date.accessioned2017-06-07T20:07:57Z
dc.date.available2017-06-07T20:07:57Z
dc.date.created1999
dc.date.issued1999
dc.identifier.urihttp://knowledgecommons.lakeheadu.ca/handle/2453/3123
dc.description.abstractAnterior cruciate injuries are extremely debilitating injuries for active individuals. It is estimated that 60 to 70% of all serious knee injuries involve damage to the anterior cruciate ligament (ACL) (Brant. 1989). One of the functional roles of the hamstrings is to prevent the anterior translation of the tibia, absorbing a portion of the anterior shear forces on the ACL (Brant. 1989; Nordin & Frankel, 1989). Timing of the hamstrings contraction during gait provides an important counter force to stabilize the knee. However, if the force occurs too early or too late, stabilization is compromised. Electromyographical (EMG) research analyses demonstrates that the hamstrings increase in actuation just before heelstrike (GaufBn & Tropp, 1992; Gronley & Perry, 1984; Phyllis, 1993; Johnstone, 1993). This response may be due to training of the muscle to respond to spatial and temporal cues, causing a compensator) contraction of the hamstrings (Schm idt 1988; Vlagill, 1989).
dc.language.isoen_US
dc.subjectHamstring muscle Contraction
dc.subjectKnee Mechanical properties
dc.subjectAnterior cruciate ligament
dc.titleHamstrings contractile timing in anterior cruciate deficient subjects
dc.typeThesis
etd.degree.nameMaster of Science
etd.degree.levelMaster
etd.degree.disciplineKinesiology
etd.degree.grantorLakehead University


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