Observational assessment of forceful exertion and the perceived force demands of daily activities.
The primary objective of this study was to assess the accuracy and precision with which analysts observe and estimate the force produced as subjects performed exertions on a work simulator. Eight analysts observed 32 subjects and estimated force as a percent of subjects' maximum voluntary contractio...
| Publicado en: | Journal of Occupational Rehabilitation Vol. 14; no. 4; pp. 281 - 295 |
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| Autores principales: | , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Springer Nature
Dec2004
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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=106611969&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 106611969 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10530487 JOR jtl: Journal of Occupational Rehabilitation issn: 10530487 maglogo: N pubinfo: dt: Dec2004 vid: 14 iid: 4 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 106611969 106611969 2005073427 10.1023/b:joor.0000047430.22740.57 NLM15638258 106611969 ppf: 281 ppct: 14 formats: fmt: @attributes: type: P tig: atl: Observational assessment of forceful exertion and the perceived force demands of daily activities. aug: au: Marshall MM Armstrong TJ affil: Department of Industrial and Systems Engineering, Rochester Institute of Technology, 81 Lomb Memorial Drive, Rochester, NY 14623; mmmeie@rit.edu sug: subj: Exertion Evaluation Occupational Diseases Work Capacity Evaluation Activities of Daily Living Videorecording Perception Ergonomics Observational Methods Surveys Questionnaires Adult Female Male Funding Source Human Adult: 19-44 years Female Male ab: The primary objective of this study was to assess the accuracy and precision with which analysts observe and estimate the force produced as subjects performed exertions on a work simulator. Eight analysts observed 32 subjects and estimated force as a percent of subjects' maximum voluntary contraction (% MVC). Analysts exhibited bias toward the mean, as high force exertions (> 67% MVC) were underestimated (mean: 11.6% MVC) and low force exertions (<34% MVC) were overestimated (mean: 6.7% MVC). Average error for medium force exertions (34-67% MVC) was not statistically different from zero (2.1% MVC). For all force levels, precision of the estimate was very poor (standard deviation range: 16.2-20.7% MVC). Experience of the analyst in performing ergonomic analysis did not affect accuracy. A secondary objective of the study was to conduct a survey in which subjects identified activities of daily living they perceived as equivalent to controlled force levels. A total of 59 different activities ranging from minimal force required to near maximum were listed by at least 5% of the participants. This list may be used to assist health care practitioners and patients convey the force demands required of occupational tasks as well as for evaluating the diminished strength of the patient. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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