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KMID : 1020120080060010103
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Journal of the Korean Academy of Clinical Electrophysiology
2008 Volume.6 No. 1 p.103 ~ p.114
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The Effect of standard and Downward Slope of the Keyboards on Upper Trapezius Electromyography of Typists With Taping
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Park Hyung-Ki
Park Jang-Sung
Cho Nam-Jeong
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Abstract
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The purpose of this study is to use standard and downward slope of the keyboards with taping to influence electromyography of upper trapezius. The effect of taping raise a medical criticism, but we do an experiment on two kind of keyboards with taping in order to decrease stress of shoulder. Subjects are in Seonam university whose are twelve healthy adults in their twenties. This experiment used two kind of keyboards. Standard keyboard’s degree is and another keyboard’s degree is . Application of Kinesio taping attached belly of upper trapezius tightly. Measurement of electromyography attached posterior of acromion process go by spinous process of 7th cervical vertebra and upper trapezius. Method of analysis used Repeated measure two-way ANOVA. Result of this experiment, both shoulder’s muscle activity increased(p<.05) when used standard keyboard and downward keyboard with taping used. We compared muscle activity that used downward keyboard than standard keyboard. Statistically, it dosen’t increase in neck and shoulder(p>.05). Therefore, using a keyboard with upper trapezius’s taping in order to decrease muscle activity isn’t influenced.
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KEYWORD
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Standard keyboard, Downward keyboard, Taping, Upper trapezius
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