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The impact of object size and precision demands on fatigue during computer mouse use
Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap, CBF. Högskolan i Gävle, Centrum för belastningsskadeforskning. Department of Community Medicine and Rehabilitation, Physiotherapy, University of Umeå, Sweden.
Högskolan i Gävle, Akademin för hälsa och arbetsliv, Avdelningen för arbets- och folkhälsovetenskap, CBF. Högskolan i Gävle, Centrum för belastningsskadeforskning.
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2011 (Engelska)Ingår i: Advances in Physiotherapy, ISSN 1403-8196, E-ISSN 1651-1948, Vol. 13, nr 3, s. 118-127Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Prolonged computer use, especially if fatigue ensues, is associated with visual and musculoskeletal symptoms. The aim was to determine the time-course of perceived fatigue in the wrist, forearm, shoulder and eyes during a 60-min mouse task (painting rectangles), and whether object size and/or mouse use demands were of influence. Also, we investigated performance (number of rectangles painted), and whether perceived fatigue was paralleled by local muscle fatigue or tissue oxygenation. Ten women performed the task for three conditions (crossover design). At condition 1, rectangles were 45 × 25 mm, square paint cursor size 1.3 × 1.3 mm, and mousepointer movement ratio 1:26. At condition 2, the same cursor size and mousepointer movement ratio was used, but rectangles were smaller. At condition 3, the smaller rectangles were used, but the cursor size was also smaller and mousepointer movement ratio was 1:8. The results showed increased self-reported fatigue over time, with the observed increase greater for the eyes, but no change in physiological responses. Condition 2 resulted in higher performance and increased eye fatigue. Perceived fatigue in the muscles or physiological responses did not differ between conditions. In conclusion, computer work tasks imposing high visual and motor demands, and with high performance, seemed to have an influence on eye fatigue. 

Ort, förlag, år, upplaga, sidor
2011. Vol. 13, nr 3, s. 118-127
Nationell ämneskategori
Produktionsteknik, arbetsvetenskap och ergonomi
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URN: urn:nbn:se:hig:diva-17945DOI: 10.3109/14038196.2011.583269Scopus ID: 2-s2.0-80051742494OAI: oai:DiVA.org:hig-17945DiVA, id: diva2:762343
Tillgänglig från: 2014-11-11 Skapad: 2014-11-11 Senast uppdaterad: 2018-03-13Bibliografiskt granskad

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Aasa, UlrikaRichter, HansLyskov, EugeneCrenshaw, Albert

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