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dc.contributor.authorTyson, Abigail Mariaen_US
dc.date.accessioned2017-07-02T06:00:15Z
dc.date.available2017-07-02T06:00:15Z
dc.date.issued2016-01-08en_US
dc.identifier.othervt_gsexam:7057en_US
dc.identifier.urihttp://hdl.handle.net/10919/78304
dc.description.abstractWith a rise in wearable sensor technology and the desire to investigate head impacts in previously unstudied groups, wearable head impact sensors have reached nation-wide popularity for their promising benefits to consumers and researchers. However, there are risks in relying on such technology before proper validation of its performance has been completed. Preliminary tests have found that current sensors vary widely in performance. The objective of this work was to develop and implement a test method for evaluation of wearable sensors in an ideal laboratory environment. A custom pendulum was used to impact a NOCSAE headform mounted on a Hybrid III neck. Sensors were tested under helmeted and unhelmeted conditions, according to their prescribed use. The headform was impacted at four locations, each at four impact energies ranging from 25 g to 100 g. Peak and time series headform kinematics output by each sensor were compared to accelerometers and angular rate sensors inside the headform. Average and standard deviations of peak sensor error and normalized RMS error were evaluated at each test condition to describe sensor performance. Requirements were set in the slope and coefficient of determination from linear regressions constrained through the origin to describe adequate sensor performance under ideal conditions. Sensors that met the requirement in at least one kinematic variable will be further evaluated in more realistic on-field and cadaver tests. The combination of all testing phases will be used to provide an overall sensor evaluation for both researchers and consumers.en_US
dc.format.mediumETDen_US
dc.publisherVirginia Techen_US
dc.rightsThis Item is protected by copyright and/or related rights. Some uses of this Item may be deemed fair and permitted by law even without permission from the rights holder(s), or the rights holder(s) may have licensed the work for use under certain conditions. For other uses you need to obtain permission from the rights holder(s).en_US
dc.subjectconcussionen_US
dc.subjecthead impactsen_US
dc.subjectsensoren_US
dc.subjectyouth sportsen_US
dc.subjectunhelmeted sportsen_US
dc.titleDevelopment and Implementation of Laboratory Test Methods for the Evaluation of Wearable Head Impact Sensorsen_US
dc.typeThesisen_US
dc.contributor.departmentBiomedical Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineBiomedical Engineeringen_US
dc.contributor.committeechairDuma, Stefan M.en_US
dc.contributor.committeememberRowson, Stevenen_US
dc.contributor.committeememberKemper, Andrew R.en_US


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