Task-based estimation of mechanical job exposure in occupational groups

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Mathiassen, Svend ErikLund University,Lunds universitet,Högskolan i Gävle,Belastningsskadecentrum,Avdelningen för arbets- och miljömedicin,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Occupational and Environmental Medicine, Lund University,Department of Laboratory Medicine,Faculty of Medicine (författare)

Task-based estimation of mechanical job exposure in occupational groups

Artikel/kapitelEngelska2005

Förlag, utgivningsår, omfång ...

2005
printrdacarrier

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LIBRIS-ID:oai:DiVA.org:hig-2864
https://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-2864URI
https://lup.lub.lu.se/record/243869URI

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Språk:engelska
Sammanfattning på:engelska

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Ämneskategori:ref swepub-contenttype
Ämneskategori:art swepub-publicationtype

Anmärkningar

OBJECTIVES: This study examined the validity of a common belief in epidemiology with respect to work-related musculoskeletal disorders, that individual mechanical job exposure is better estimated from tasks performed in the job than from the mean exposure of the occupational group. METHODS: Whole-day recordings of upper trapezius electromyography were obtained from 24 cleaners and 23 office workers. Trapezius activity was analyzed in the level (gap time) and frequency (jerk time) dimensions. On the same day, the job of each person was divided into periods of active work and breaks by means of continuous observations. The bootstrap re-sampling technique was used with this database to compare task-based job exposure estimates with estimates based on the occupational mean. For a particular person, the task-based estimate was obtained by combining the average work and break exposures in the occupation with the personal time proportions of the two tasks in the job. RESULTS: The task-based estimates were, in general, equivalent to, or less correct than, occupation-based estimates for both exposure parameters in both occupations and for individual exposures, as well as for group means. This was the result in spite of significant and consistent exposure differences between work and breaks, in particular among the cleaners. CONCLUSIONS: Even if task exposure contrasts are large, task-based estimates of job exposures can be less correct than estimates based on the occupational mean. Since collecting and processing task information is costly, it is recommended that task-based modeling of mechanical exposure be implemented in studies only after careful examination of its possible benefits.

Ämnesord och genrebeteckningar

MEDICIN OCH HÄLSOVETENSKAP Hälsovetenskap Arbetsmedicin och miljömedicin hsv//swe
MEDICAL AND HEALTH SCIENCES Health Sciences Occupational Health and Environmental Health hsv//eng
Bias (Epidemiology)
Biomechanics
Electromyography
Housekeeping
Hospital
Human Engineering
Humans
Muscle
Skeletal physiopathology
Musculoskeletal Diseases diagnosis epidemiology etiology
Occupational Diseases diagnosis epidemiology etiology
Occupational Exposure adverse effects statistics & numerical data
Office Management
Task Performance and Analysis
occupational epidemiology
activity
muscle
job-exposure matrix
estimation bias
exposure variability
occupational group mean
task-based model

Biuppslag (personer, institutioner, konferenser, titlar ...)

Nordander, CatarinaLund University,Lunds universitet,Avdelningen för arbets- och miljömedicin,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Occupational and Environmental Medicine, Lund University,Department of Laboratory Medicine,Faculty of Medicine,Department of Occupational and Environmental Medicine, Lund University Hospital(Swepub:lu)ymed-cno (författare)
Svendsen, Susanne WDepartment of Occupational Medicine, University Hospital of Aarhus, Aarhus, Denmark (författare)
Wellman, Helen MLiberty Mutual Research Institute for Safety, Hopkinton, Massachusetts (författare)
Dempsey, Patrick GLiberty Mutual Research Institute for Safety, Hopkinton, Massachusetts (författare)
Högskolan i GävleBelastningsskadecentrum (creator_code:org_t)

Sammanhörande titlar

Ingår i:Scandinavian Journal of Work, Environment and Health31:2, s. 138-510355-31401795-990X

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Scandinavian Journal of Work, Environment and Health (Sök värdpublikationen i LIBRIS)

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Av författaren/redakt...: Mathiassen, Sven ...; Nordander, Catar ...; Svendsen, Susann ...; Wellman, Helen M; Dempsey, Patrick ...

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MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Hälsovetenskap; och Arbetsmedicin oc ...

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Av lärosätet: Högskolan i Gävle; Lunds universitet

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