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논문 기본 정보

자료유형
학술저널
저자정보
Wonhak Cho (Sungkyunkwan University) Wooyong Lee (Sungkyunkwan University) Hyeonki Choi (Sungkyunkwan University)
저널정보
한국비파괴검사학회 비파괴검사학회지 비파괴검사학회지 제29권 제3호
발행연도
2009.6
수록면
224 - 229 (6page)

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초록· 키워드

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An experimental study was conducted to investigate the effects of turtle neck syndrome, so called, on muscular fatigue and muscle activity. Six subjects (males) participated and performed the prolonged casual computer work in the study. EMG signals from six muscles of the dominant neck-back region were acquired and recorded for 10 seconds at the beginning and the end of three hours computer work. EMG was recorded from six muscles by using a computerized data recording and analysis system. Power spectrum function of EMG was calculated off-line by means of a signal processing software package. Power spectrum functions were smoothed with a moving average filter of 21 points and normalized with respect to the maximal value achieved during the trials. Muscle activity and median frequencies of Sternocleidomastoid(SCM) in turtle neck posture was approximately 51 %, which were less than those in normal neck posture. SCM also showed the biggest decrease in median frequency. Results will provide the insight into the neck-back injury mechanism of turtle neck patients. Furthermore, they will be helpful in developing rehabilitation programs for restoring patients’ neck-back functions.

목차

Abstract
1. Introduction
2. Methods
3. Results
4. Discussion
References

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