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신관섭

Shin, GwanSeob
Ergonomics Lab.
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Shoulder and neck muscle activities during typing with articulating forearm support at different heights

Author(s)
Zhu, XinhuiShin, Gwanseob
Issued Date
2012-11
DOI
10.1080/00140139.2012.709541
URI
https://scholarworks.unist.ac.kr/handle/201301/2862
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84867874112
Citation
ERGONOMICS, v.55, no.11, pp.1412 - 1419
Abstract
Use of forearm support is known to reduce physical stress of computer users, but research about how to properly position the forearm support is insufficient. This study was aimed to determine whether the height of forearm support influences muscular loads during typing. Twenty four subjects performed a typing task with a pair of articulating forearm support at three different heights as well as without any support, while shoulder, neck and forearm muscle activities and posture data were recorded. Typing with the support at resting elbow height produced significantly (p<0.05) lower shoulder and neck muscle activities than that of no support condition. Typing with the support at heights higher than the resting elbow height produced significantly greater shoulder and neck muscle activities compared to the no support condition. Results suggest that forearm support can help computer users lessen physical stress in typing, but only when the supports are positioned at resting elbow height.
Publisher
TAYLOR & FRANCIS LTD
ISSN
0014-0139
Keyword (Author)
forearm supportarmrestcomputer workstationoffice ergonomicsVDT

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