Three-dimensional peak and cumulative shoulder loads and postures during non-occupational tasks: A preliminary investigation.
BACKGROUND: In order to obtain a complete understanding of the etiology of upper extremity musculoskeletal disorders, a spectrum of risk factors needs to be evaluated, within and external to the workplace. To date, cumulative shoulder loads (forces and moments) have only been documented during autom...
| Publicado en: | Work Vol. 47; no. 1; pp. 73 - 87 |
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| Autores principales: | , , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
2014
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104034645&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104034645 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10519815 3RC jtl: Work issn: 10519815 maglogo: N pubinfo: dt: 2014 vid: 47 iid: 1 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 104034645 94615574 10.3233/WOR-131684 NLM24004746 104034645 ppf: 73 ppct: 14 formats: fmt: @attributes: type: P tig: atl: Three-dimensional peak and cumulative shoulder loads and postures during non-occupational tasks: A preliminary investigation. aug: au: Azar, Nadia R. Iley, Tara Godin, Christina A. Callaghan, Jack P. Andrews, David M. affil: Department of Kinesiology, University of Windsor, Windsor, ON, Canada sug: subj: Shoulder Musculoskeletal Diseases Risk Factors Home Environment Human Biomechanics Female Male Adult Middle Age Motion Pictures T-Tests Funding Source Adult: 19-44 years Middle Aged: 45-64 years Female Male ab: BACKGROUND: In order to obtain a complete understanding of the etiology of upper extremity musculoskeletal disorders, a spectrum of risk factors needs to be evaluated, within and external to the workplace. To date, cumulative shoulder loads (forces and moments) have only been documented during automotive assembly tasks. No information on shoulder loads during non-occupational tasks has been reported. OBJECTIVE: To document 3D peak and cumulative shoulder loads and postures associated with non-occupational tasks. METHODS: Seven male (35.8 ± 15.7 years) and six female (44.0 ± 14.3 years) healthy working-aged individuals volunteered for this study. A video-based 3D posture sampling approach was used to document shoulder joint postures while participants performed non-repetitive tasks in and around their own homes over a 2-hour period. A 3D rigid link segment model was used to calculate reaction forces and moments at the shoulder. RESULTS: Peak shoulder moments approached, and in some cases exceeded, published maximum isometric strength measurements, particularly in female participants. When extrapolated to a 7-hour shift, cumulative shoulder flexion and abduction moments, cumulative reaction caudal shear forces, and the time spent in non-neutral flexion and abduction were comparable in magnitude to those reported for light automotive assembly tasks. CONCLUSIONS: Non-occupational tasks should be evaluated more widely if a complete picture of the risk of musculoskeletal injury associated with shoulder loading is to be established. More work is needed to develop threshold limits for both peak and cumulative shoulder loads to improve injury prevention strategies. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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