Source:http://linkedlifedata.com/resource/pubmed/id/18568966
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
2008-6-23
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pubmed:abstractText |
The effects of employment duration and pain development on motor variability were investigated during repetitive work. Electromyographic (EMG) and kinematics data from two previous studies were re-analysed. Newly employed butchers were followed prospectively in relation to employment duration and pain development. Healthy butchers with long-term experience were compared with novices. The variability of the cycle time, EMG ratio and arm and trunk movement was expressed as cycle-to-cycle standard deviations. During the first 6 months of employment, cycle time variability decreased, while posture and movement variability increased (p < 0.05). In presence of pain, the variability of the initial arm position decreased while it increased for the trunk (p < 0.05). Experienced butchers showed a larger variability than novices for work cycle and several kinematic variables, but a smaller EMG ratio variability (p < 0.05). These findings indicate that the variability of motor patterns in repetitive work changes with experience and pain. A change towards a more variable motor strategy may protect workers from work-related musculoskeletal disorders.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0014-0139
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
51
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1078-95
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pubmed:meshHeading |
pubmed-meshheading:18568966-Adult,
pubmed-meshheading:18568966-Arm,
pubmed-meshheading:18568966-Biomechanics,
pubmed-meshheading:18568966-Electromyography,
pubmed-meshheading:18568966-Female,
pubmed-meshheading:18568966-Humans,
pubmed-meshheading:18568966-Male,
pubmed-meshheading:18568966-Middle Aged,
pubmed-meshheading:18568966-Occupational Health,
pubmed-meshheading:18568966-Task Performance and Analysis,
pubmed-meshheading:18568966-Time Factors
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pubmed:year |
2008
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pubmed:articleTitle |
The size of cycle-to-cycle variability in biomechanical exposure among butchers performing a standardised cutting task.
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pubmed:affiliation |
Laboratory for Work-related Pain and Biomechanics, Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Aalborg University, Aalborg, Denmark. pm@hst.aau.dk
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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