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Temporal strategy and performance during a fatiguing short-cycle repetitive task
University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences. University of Gävle, Centre for Musculoskeletal Research.
University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences. University of Gävle, Centre for Musculoskeletal Research.ORCID iD: 0000-0003-1443-6211
University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences. University of Gävle, Centre for Musculoskeletal Research.ORCID iD: 0000-0002-2741-1868
TNO, Work& Employment, the Netherlands.
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2012 (English)In: Ergonomics, ISSN 0014-0139, E-ISSN 1366-5847, Vol. 55, 863-873 p.Article in journal (Refereed) Published
Abstract [en]

This study investigated temporal changes in movement strategy and performance during fatiguing short-cycle work. Eighteen participants performed six 7-minutes work blocks with repetitive reaching movements at 0.5 Hz, each followed by a 5.5-minute rest break for a total duration of one hour. Electromyography (EMG) was collected continuously from the upper trapezius muscle, the temporal movement strategy and timing errors were obtained on a cycle-to-cycle basis, and perceived fatigue was rated before and after each work block. Clear signs of fatigue according to subjective ratings and EMG manifestations developed within each work block, as well as during the entire hour. For most participants, timing errors gradually increased, as did the waiting time at the near target. Changes in temporal movement strategy were negatively correlated with changes in the level and variability of EMG, suggesting that an adaptive temporal strategy offset the development of unstable motor solutions in this fatiguing, short-cycle work

Place, publisher, year, edition, pages
2012. Vol. 55, 863-873 p.
Keyword [en]
Physical Fatigue, Physical Ergonomics, EMG, timing of movements
National Category
Environmental Health and Occupational Health
Identifiers
URN: urn:nbn:se:hig:diva-8553DOI: 10.1080/00140139.2012.682739ISI: 000306692100004Scopus ID: 2-s2.0-84864564945OAI: oai:DiVA.org:hig-8553DiVA: diva2:403311
Available from: 2011-03-11 Created: 2011-03-11 Last updated: 2016-02-23Bibliographically approved

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Bosch, TimMathiassen, Svend ErikHallman, DavidLyskov, Eugene
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CiteExportLink to record
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