Investigation of pacing as a control measure for an industrial lifting task above waist height.
BACKGROUND: In industrial supply companies, the pressure for productivity can conflict with the ergonomic safety of material handling on the loading dock, with workers tending to rush through the lifting tasks at the expense of higher biomechanical loads. OBJECTIVE: The purpose of this investigation...
| Publicado en: | Work Vol. 47; no. 1; pp. 15 - 23 |
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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=104034639&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104034639 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: 104034639 94615569 10.3233/WOR-131682 NLM24004740 104034639 ppf: 15 ppct: 8 formats: fmt: @attributes: type: P tig: atl: Investigation of pacing as a control measure for an industrial lifting task above waist height. aug: au: Abdoli-E, Mohammad Damecour, Caroline Petersen, Anne Potvin, Jim affil: School of Occupational and Public Health, Ryerson University, Toronto, ON, Canada sug: subj: Lifting Task Performance and Analysis Biomechanics Human Time Factors Male Students, College Motion Analysis Systems Equipment and Supplies Data Analysis Software Repeated Measures Analysis of Variance Male ab: BACKGROUND: In industrial supply companies, the pressure for productivity can conflict with the ergonomic safety of material handling on the loading dock, with workers tending to rush through the lifting tasks at the expense of higher biomechanical loads. OBJECTIVE: The purpose of this investigation was to determine: a) the potential benefit of introducing an ergonomic safety initiative, which slows the speed of lifting, and b) the need to use more complex biomechanical models in work assessments. PARTICIPANTS: One experienced worker and nine university male students between the ages of 22 and 42 participated in this study; all reported no recent history of musculoskeletal injuries. METHODS: The investigation involved stacking empty propane cylinders, one on top of the other, while using a single-handed lift at a self-selected slow and fast pace, and lifting small, weighted beverage bottles at a slow, medium and fast pace, this time using a metronome to set the pace. RESULTS: The results demonstrated a significant main effect for lift pace for both peak static and dynamic external moments at the shoulder and at L4/L5, with a larger effect occurring with the lighter loads. A reduction in peak acceleration with heavier weights partially explained the confounding influence from load. Significant differences occurred between the peak static moments according to load, suggesting an accommodation in the lift strategy. There were also significant differences between the static and dynamic external moments, which became meaningful when the lift pace was medium or fast, suggesting that a dynamic analysis is not necessary if the pace is slow. CONCLUSION: This investigation further supports that the pace of lifting is an important work factor in safe lifting and material handling. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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