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.
이용수
초록· 키워드
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Objective: The aim of this study is to evaluate the fluctuation of signal amplitude during repetitive dynamic contraction based on surface electromyography(EMG). Background: The most previous studies were considered isometric muscle contraction and they were difference to smoothing window length by moving average filter. In practical, the human movement is dynamic state. Dynamic EMG signal which indicated as the nonstationary pattern should be analyzed differently compared with the static EMG signal. Method: Ten male subjects participated in this experiment, and EMG signal was recorded by biceps brachii, anterior/posterior deltoid, and upper/lower trapezius muscles. The subject was performed to repetitive right horizontal lifting task during ten cycles. This study was considered three independent variables(muscle, amplitude processing technique, and smoothing window length) as the within-subject experimental design. This study was estimated muscular activation by means of the linear envelope technique(LE). The dependent variable was set coefficient of variation(CV) of LE for each cycle. Results: The ANOVA results showed that the main and interaction effects between the amplitude processing technique and smoothing window length were significant difference. The CV value of peak LE was higher than mean LE. According to increase the smoothing window length, this study shows that the CV trend of peak LE was decreased. However, the CV of mean LE was analyzed constant fluctuation trend regardless of the smoothing window length. Conclusion: Based on these results, we expected that using the mean LE and 300ms window length increased reproducibility and signal noise ratio during repetitive dynamic muscle contraction. Application: These results can be used to provide fundamental information for repetitive dynamic EMG signal processing.
목차
ABSTRACT
1. Introduction
2. Method
3. Results
4. Discussion
References
Author listings
참고문헌 (28)
참고문헌 신청
1. [학술지(정기간행물)] - Aagaard, P / 2002 / Increased rate of force development and neural drive of human skeletal muscle following resistance training / Journal of Applied Physiology 93 (1) : 1318 ~ 1326
2. [학술지(정기간행물)] - Aggelousis, N / 2007 / Repeatability of electromyographic waveforms during the Naeryo Chagi in takwondo / Journal of Sports Science and Medicine 6 (2) : 6 ~ 9
3. [학술지(정기간행물)] - Benoit, D. L / 2003 / The clinical significance of electromyography normalisation techniques in subjects with anterior cruciate ligament injury during treadmill walking / Gait and Posture 18 (2) : 59 ~ 63
4. [학술지(정기간행물)] - Biasotto-Gonzalez, D. Ap / 2010 / Electromyographic study of stomatognathic system muscles during chewing of different materials / Electromyography and Clinical Neurophysiology 50 (2) : 121 ~ 127
5. [학술지(정기간행물)] - Burden, A / 1999 / Normalisation of EMG amplitude: an evaluation and comparison of old and new method / Medical Engineering & Physics 21 (4) : 247 ~ 257
2. [학술지(정기간행물)] - Aggelousis, N / 2007 / Repeatability of electromyographic waveforms during the Naeryo Chagi in takwondo / Journal of Sports Science and Medicine 6 (2) : 6 ~ 9
3. [학술지(정기간행물)] - Benoit, D. L / 2003 / The clinical significance of electromyography normalisation techniques in subjects with anterior cruciate ligament injury during treadmill walking / Gait and Posture 18 (2) : 59 ~ 63
4. [학술지(정기간행물)] - Biasotto-Gonzalez, D. Ap / 2010 / Electromyographic study of stomatognathic system muscles during chewing of different materials / Electromyography and Clinical Neurophysiology 50 (2) : 121 ~ 127
5. [학술지(정기간행물)] - Burden, A / 1999 / Normalisation of EMG amplitude: an evaluation and comparison of old and new method / Medical Engineering & Physics 21 (4) : 247 ~ 257
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UCI(KEPA) : I410-ECN-0101-2013-530-001464813