Accuracy of visual estimation in classifying effort during a lifting task.
Objective: The objective was to determine if visual estimation of effort (VEE) during lifting tasks is accurate in classifying relative levels of exertion or distinguishing between incomplete lifts that may be potentially unsafe and incomplete lifts of "actors" feigning weakness. Participants: A con...
| Publicado en: | Work Vol. 40; no. 4; pp. 445 - 458 |
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| Autores principales: | , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
2011
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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=67478626&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 67478626 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10519815 3RC jtl: Work issn: 10519815 maglogo: N pubinfo: dt: 2011 vid: 40 iid: 4 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 67478626 104605579 104605579 10.3233/wor-2011-1256 67478626 ppf: 445 ppct: 13 formats: fmt: @attributes: type: P tig: atl: Accuracy of visual estimation in classifying effort during a lifting task. aug: au: Schapmire, Darrell W. St. James, James D. Townsend, Robert Feeler, Larry affil: X-RTS Software Products and Testing Devices, Hopedale, IL, USA sug: subj: Occupational Health Task Performance and Analysis Methods Lifting Evaluation Visual Perception Psychophysics Human Illinois Male Female Adult Middle Age Descriptive Statistics Convenience Sample Performing Artists Videorecording Lifting Classification Functional Assessment Adult: 19-44 years Middle Aged: 45-64 years Male Female ab: Objective: The objective was to determine if visual estimation of effort (VEE) during lifting tasks is accurate in classifying relative levels of exertion or distinguishing between incomplete lifts that may be potentially unsafe and incomplete lifts of "actors" feigning weakness. Participants: A convenience sample of 117 health professionals and lay subjects participated in the study. Methods: Four actors were videoed performing four complete dynamic lifts (sets of five repetitions) of varying levels of exertion (relative to subjects' physical maximum). Subjects viewed the videoed performances, presented in no apparent order, attempting to properly classify the lifting tasks. For the four levels of exertion, participants were to judge if the lifts were 25%, 50%, 75% and 100% of each actor's maximum lifting capacity and to distinguish between an incomplete (failed) lift of 110% of maximum and a feigned failure of a lift of 25% of maximum. Results: Accuracy for in classifying all lifting activities was marginally higher than chance. There were no differences in the accuracy of health professionals or lay subjects. Conclusion: The VEE does not accurately classify relative levels of exertion or distinguish between incomplete feigned effort lifts and lifts that are potentially too heavy to safely lift. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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