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dc.contributorWichita State University. Department of Industrial and Manufacturing Engineeringen_US
dc.contributor.authorJorgensen, Michael J.en_US
dc.contributor.authorKittusamy, N. K.en_US
dc.contributor.authorAedla, Pranathi B.en_US
dc.identifier.citationJournal of occupational and environmental hygiene. 2007 Dec; 4(12): 913-22.en_US
dc.descriptionClick on the DOI link below to access the article (may not be free).en_US
dc.description.abstractRisk factors associated with the development of musculoskeletal discomfort and disorders during the operation of heavy mobile equipment include whole-body vibration and awkward and sustained joint postures of the shoulders, neck, and trunk. Cab design may influence awkward postures of the joints, and task duration may influence duration of exposure to awkward and static postures and whole-body vibration. To reduce exposure to risk factors related to the interface between cab design and task, it may be necessary for manufacturers to address cab design. This study assessed the repeatability of a cab design checklist developed to evaluate various design characteristics that can influence exposure to risk factors for musculoskeletal discomfort. The ability of the cab design checklist to identify posture-related deficiencies of design was also assessed. The checklist was used by two administrators across 10 pieces of heavy construction equipment. Video analysis was performed to quantify postures of the neck, shoulder, and trunk; correlation analysis was used to determine whether specific questions from the checklist were associated with the identification of awkward postures. The repeatability assessment resulted in kappa coefficients ranging from 0.52 to 1.0 (good-to-excellent reproducibility) across each piece of equipment, and an overall kappa coefficient of 0.77 (excellent reproducibility) when considering all equipment together. Results from the correlation analysis showed that shoulder flexion posture was correlated with scores from the cab design checklist. However, results of the cab design checklist were not significantly correlated with shoulder abduction or awkward postures of the neck and trunk. Results suggest that the cab design checklist may be useful for identifying cab design characteristics that need further improvement and for identifying design characteristics that increase shoulder flexion. The strength of the repeatability assessment suggests that outcomes of the cab design checklist administered by different individuals may be consistent, independent of the type of equipment being assessed.en_US
dc.publisherTaylor & Francisen_US
dc.relation.ispartofseriesJournal of Occupational and Environmental Hygieneen_US
dc.relation.ispartofseriesJ Occup Environ Hygen_US
dc.subjectEvaluation Studiesen_US
dc.subjectResearch Support, U.S. Gov't, P.H.S.en_US
dc.subject.meshAutomobile Drivingen_US
dc.subject.meshCumulative Trauma Disorders/prevention & controlen_US
dc.subject.meshEquipment Design/methodsen_US
dc.subject.meshHuman Engineering/methodsen_US
dc.subject.meshMotor Vehiclesen_US
dc.subject.meshObserver Variationen_US
dc.subject.meshOccupational Diseases/prevention & controlen_US
dc.subject.meshReference Valuesen_US
dc.subject.meshEquipment Design/standardsen_US
dc.subject.meshHuman Engineering/standardsen_US
dc.subject.meshHuman Engineering/statistics & numerical dataen_US
dc.titleRepeatability of a checklist for evaluating cab design characteristics of heavy mobile equipmenten_US
dc.coverage.spacialUnited Statesen_US
dc.description.versionpeer revieweden_US
dc.rights.holderCopyright © 2007 Taylor & Francisen_US

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