지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.1
- 수록면
- 46 - 55 (10page)
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초록· 키워드
오류제보하기
The purpose of this study was to investigate the effect of the two different types of chairs on trapezius muscle activation during dictation tasks. Seventeen university students, each of whom were within ${\pm}1$ standard deviation of the mean Korean standard body size, voluntarily participated in this study. Surface electromyography was used to collect electrical signals from both the upper and lower trapezius muscles. Amplitude Probability Distribution Function (APDF) was performed to analyze the muscle activity. The findings of this study were 1) The backrest-point height of the auditorium chair and the height, length and width of the connected desk were shorter than what was suggested by the KS. Another difference was that the auditorium chair had a bigger angle of the backrest compared to the classroom chair. 2) Regarding within-subject effect the sole statistically significant difference was found between activation of the upper trapezius muscle. The upper trapezius muscle's %RVC in the APDF 10th-50th-90th percentile was statistically higher for participants sitting in the auditorium chair than for participants sitting in the classroom chair (p<.05). 3) There was an interaction effect between the 'two chair-types' and the 'two muscle-sides' in the APDF 10th-50th percentile (p<.05). 4) There was an interaction effect between the 'two chair-types' and the 'three gaze-direction' in the APDF 90th percentile (p<.05). The findings of this study indicated that maintaining a writing posture for a prolonged period of time in an auditorium chair significantly increased the left upper trapezius muscle activation compared to a classroom chair.
목차
등록된 정보가 없습니다.
참고문헌 (26)
참고문헌 신청
Aaras A / 1997 / Postural load during VDU work: A comparison between various work postures / Ergonomics 40 (11) : 1255 ~ 1268
Aaras A. / 1994 / Relationship between trapezius load and the incidence of musculoskeletal illness in the neck and shoulder / Int J Ind Ergon 14 (4) : 341 ~ 348
Blangsted AK / 2003 / Muscle activity during computer-based office work in relation to self-reported job demands and gender / Eur J Appl Physiol 89 (3-4) : 352 ~ 358
Briggs A / 2004 / Upper quadrant postural changes of school children in response to interaction with different information technologies / Ergonomics 47 (7) : 790 ~ 819
Capodaglio P / 1996 / Quantification of muscular activity in the shoulder region during monotonous repetitive work / Med Lav 87 (4) : 305 ~ 313
Aaras A. / 1994 / Relationship between trapezius load and the incidence of musculoskeletal illness in the neck and shoulder / Int J Ind Ergon 14 (4) : 341 ~ 348
Blangsted AK / 2003 / Muscle activity during computer-based office work in relation to self-reported job demands and gender / Eur J Appl Physiol 89 (3-4) : 352 ~ 358
Briggs A / 2004 / Upper quadrant postural changes of school children in response to interaction with different information technologies / Ergonomics 47 (7) : 790 ~ 819
Capodaglio P / 1996 / Quantification of muscular activity in the shoulder region during monotonous repetitive work / Med Lav 87 (4) : 305 ~ 313
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