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Reproducibility of Electromyography Signal Amplitude during Repetitive Dynamic Contraction
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 Title & Authors
Reproducibility of Electromyography Signal Amplitude during Repetitive Dynamic Contraction
Mo, Seung-Min; Kwag, Jong-Seon; Jung, Myung-Chul;
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 Abstract
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.
 Keywords
Electromyography;Amplitude;Linear envelope;Coefficient of variation;Reproducibility;
 Language
Korean
 Cited by
 References
1.
Aagaard, P. and Mayer, F., Increased rate of force development and neural drive of human skeletal muscle following resistance training, Journal of Applied Physiology, 93(4), 1318-1326, 2002.

2.
Aggelousis, N., Gourgoulis, V., Sertsou, M., Giannakou, E. and Mavromatis, G., Repeatability of electromyographic waveforms during the Naeryo Chagi in takwondo, Journal of Sports Science and Medicine, 6(2), 6-9, 2007.

3.
Benoit, D. L., Lamontagne, M., Cerulli, G. and Liti, A., The clinical significance of electromyography normalisation techniques in subjects with anterior cruciate ligament injury during treadmill walking, Gait and Posture, 18(2), 59-63, 2003.

4.
Biasotto-Gonzalez, D. Ap., Berzin, F., Da Costa, J. M. and De Oliveira Gonzalez, T., Electromyographic study of stomatognathic system muscles during chewing of different materials, Electromyography and Clinical Neurophysiology, 50(2), 121-127, 2010.

5.
Burden, A. and Barlett, R., Normalisation of EMG amplitude: an evaluation and comparison of old and new method, Medical Engineering & Physics, 21(4), 247-257, 1999. crossref(new window)

6.
Calder, K. M., Stashuk, D. W. and McLean, L., Physiological characteristics of motor units in the brachioradialis muscle across fatiguing low-level isometric contractions, Journal of Electromyography and Kinesiology, 18(1), 2-15, 2008. crossref(new window)

7.
Clancy, E. A., Electromyogram amplitude estimation with adaptive smoothing window length, IEEE Transactions on Biomedical Engineering, 46(6), 717-729, 1999. crossref(new window)

8.
Clancy, E. A., Bertolina, M. V., Merletti, R. and Farina, D., Time- and frequency-domain monitoring of the myoelectric signal during a long-duration, cyclic, force-varying, fatiguing hand-grip task, Journal of Electromyography and Kinesiology, 18(5), 789-797, 2008. crossref(new window)

9.
DeLuca, C. J., The use of surface electromyography in biomechanics, Journal of Applied Biomechanics, 13(2), 135-163, 1997.

10.
Farina, D., Merletti, R. and Enoka, R., The extraction of neural strategies from the surface EMG, Journal of Applied Physiology, 96(4), 1486 -1495, 2004. crossref(new window)

11.
Farina, D., Merletti, R., Marisa, N. and Caruso, I., Effect of joint angle on EMG variables in leg and thigh muscles, IEEE Engineering in Medicine and Biology, 20(6), 62-71, 2001. crossref(new window)

12.
Fischer, S. L., Belbeck, A. L. and Dickerson, C. R., The influence of providing feedback on force production and within-participant reproducibility during maximal voluntary exertions for the anterior deltoid, middle deltoid, and infraspinatus, Journal of Electromyography and Kinesiology, 20(1), 68-75, 2010. crossref(new window)

13.
Freriks, B. and Hermens, H. J., SENIAM 9: European Recommendations for Surface Electromyography. ISBN: 90-75452-14-4, Enschede, The Netherlands: Ressingh Research and Development, 1999.

14.
Gerus, P., Rao, G., Buchanan, T. S. and Berton, E., A clinically applicable model to estimate the opposing muscle groups contributions to isometric and dynamic tasks. Annals of Biomedical Engineering, 38(7), 2406-2417, 2010. crossref(new window)

15.
Hibbs, A. E., Thompson, K. G., French, D. N., Hodgson, D. and Spears, I. R., Peak and average rectified EMG measures: which method of data reduction should be used for assessing core training exercise. Journal of Electromyography and Kinesiology, 21(1), 102-111, 2011. crossref(new window)

16.
Hopkins, W. G., Measures of reliability in sports medicine and science. Sports Medicine, 30(1), 1-15, 2000. crossref(new window)

17.
Korean Agency for Technology and Standards, Size Korea, 5th Korean human anthropometric research project report, 2004.

18.
Kumar, S. and Mital, A., Electromyography in ergonomics, Taylor & Francis, 1996.

19.
Larsson, B., Månsson, B., Karlberg, C., Syverstsson, P., Elert, J. and Gerdle, B., Reproducibility of surface EMG variables and peak torque during three sets of ten dynamic contractions, Journal of Electromyography and Kinesiology, 9(5), 351-357, 1999. crossref(new window)

20.
Lotz, C. A., Agnew, M. J., Godwin, A. A. and Stevenson, J. M., The effect of an on-body personal lift assist device(PLAD) on fatigue during a repetitive lifting task. Journal of Electromyography and Kinesiology, 19(2), 331-340, 2009. crossref(new window)

21.
Martins, J., Tucci, H. T., Andrade, R., Araújo, R. C., Bevilaqua-Grossi, D. and Oliveira, A. S., Electromyographic amplitude ratio of serratus anterior and upper trapezius muscles during modified push-ups and bench press exercises. Journal of Strength and Conditioning Research, 22(2), 477-484, 2008. crossref(new window)

22.
Mital, A., Nicholson, A. S. and Ayoub, M. M., A guide to manual material handling, Taylor & Francis, 1993.

23.
Oliveira, A. S. and Goncalves, M., EMG amplitude and frequency parameters of muscular activity: Effect of resistance training based on electromyographic fatigue threshold, Journal of Electromyography and Kinesiology, 19(2), 295-303, 2009. crossref(new window)

24.
Pfeiffer, K. A., Schmitz, K. H., McMurray, R. G., Treuth, M. S., Murray, D. M. and Pate, R. R., Physical activities in adolescent girls: variability in energy expenditure, American Journal of Preventive Medicine, 31(4), 328-331, 2006. crossref(new window)

25.
Sanders, M. S. and McCormick, E. J., Human factors in engineering and design, 7th ed., McGrow-Hill, Inc, 1993.

26.
Soderberg, G., Selected Topics in Surface Electromyography for Use in the Occupational setting: Expert Perspectives, DHHS(NIOSH) Publication, 1992.

27.
St-Amant, Y., Rancourt, D. and Clancy, E. A., Influence of smoothing window length on electromyogram amplitude estimates, IEEE Transactions on Biomedical Engineering, 45(6), 795-799, 1998. crossref(new window)

28.
Winter, D. A., Biomechanics and motor control of human movement, 3rd ed., Newjersey: John Wiley and Sons, 2005.