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Comparing Trunk Neuromuscular Measures to a Clinical Battery of Tests in a Recovered Low Back Injured Population.

dc.contributor.authorTrudel, Raymond
dc.contributor.copyright-releaseNoen_US
dc.contributor.degreeMaster of Scienceen_US
dc.contributor.departmentSchool of Physiotherapyen_US
dc.contributor.ethics-approvalReceiveden_US
dc.contributor.external-examinerDr. Derek Rutherforden_US
dc.contributor.graduate-coordinatorDr. Shaun Boeen_US
dc.contributor.manuscriptsNoen_US
dc.contributor.thesis-readerDr. Janice Moresideen_US
dc.contributor.thesis-readerDr. Anne Fenetyen_US
dc.contributor.thesis-supervisorDr. Cheryl Kozeyen_US
dc.date.accessioned2014-08-25T15:59:50Z
dc.date.available2014-08-25T15:59:50Z
dc.date.defence2014-08-15
dc.date.issued2014-08-25
dc.description.abstractIntroduction: The purpose of this study was to determine differences in trunk muscle activation patterns in recovered LBI groups classified as unstable or not. EMG from comprehensive sets of trunk muscles were compared during a controlled task between groups separated using a Modified Hicks’s protocol. Methods: 32 LBI participants who were deemed recovered were recruited from CFB Halifax within 12 weeks post-injury. EMG from trunk muscles was recorded during a standardized lift-and-replace task. Results: Significant group*muscle interaction effects were found for amplitude and temporal EMG patterns. Post hoc findings showed fewer between-muscle differences in the unstable group. Conclusions: The unstable group utilized strategies for increased active stiffness through synergistic co-activation and altered temporal responses and indicates a “bracing” strategy. These findings are consistent with the hypothesis that passive stiffness decreases are compensated by the neuromuscular system. Furthermore they provide initial evidence linking clinical tests for instability to objective physiologically-based measures.en_US
dc.identifier.urihttp://hdl.handle.net/10222/54031
dc.language.isoenen_US
dc.subjectEMGen_US
dc.subjectLow back painen_US
dc.subjectLow back injuryen_US
dc.titleComparing Trunk Neuromuscular Measures to a Clinical Battery of Tests in a Recovered Low Back Injured Population.en_US

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