Show simple item record

dc.contributor.authorQuinones-Vientos, Sandraen_US
dc.date.accessioned2014-03-14T20:30:20Z
dc.date.available2014-03-14T20:30:20Z
dc.date.issued2005-12-15en_US
dc.identifier.otheretd-01092006-090144en_US
dc.identifier.urihttp://hdl.handle.net/10919/30869
dc.description.abstractLocalized muscle fatigue (LMF) has been proposed as a surrogate measure to injury, since the onset of fatigue is rapid rather than months or years required to the onset of work related musculoskeletal disorders (WMSDs). The objectives of this study were to estimate LMF and quantify muscle activity of select forearm muscles during simulations of high pressure cleaning lance tasks common in the chemical production industry. Twenty participants, twelve males and eight females, with no musculoskeletal injuries and meeting criteria for upper extremity fitness, performed the simulated task. Independent variables studied include work height (shoulder, waist, and knuckle), lance orientation (parallel to the operator and parallel to the ground), and duty cycle (33, 50, and 67%) based on task analyses of actual work tasks. Dependent variables included mean RMS and rates of change in mean RMS, mean and median power frequency, MVE, and subjective ratings of fatigue. Repeated measures ANOVA was used to test the main effects of the independent variables and appropriate interactions. In general it was found that working at waist height, at higher duty cycles, and with the lance oriented parallel to the operator resulted in higher fatigue measures. Subjective ratings of fatigue were not well correlated with objective measures, similar to findings in previous studies. The simulated task was found to be extremely fatiguing and modifications to task design or job rotation schedules are required to reduce risk associated with injury development.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartThesisFinal1.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectelectromyography (EMG)en_US
dc.subjectrating of perceived fatigue (RPF)en_US
dc.subjectmaximum voluntary exertion (MVE)en_US
dc.subjectlocalized muscle fatigue (LMF)en_US
dc.subjectmusculoskeletal disorders (MSD)en_US
dc.titleQuantifying Localized Muscle Fatigue of the Forearm during Simulations of High Pressure Cleaning Lance Tasksen_US
dc.typeThesisen_US
dc.contributor.departmentIndustrial and Systems Engineeringen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
dc.contributor.committeechairBabski-Reeves, Kari L.en_US
dc.contributor.committeememberLockhart, Thurmon E.en_US
dc.contributor.committeememberMadigan, Michael L.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-01092006-090144/en_US
dc.date.sdate2006-01-09en_US
dc.date.rdate2006-01-30
dc.date.adate2006-01-30en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record