A Study on the Reliability Comparison of Median Frequency and Spike Parameter and the Improved Spike Detection Algorithm for the Muscle Fatigue Measurement

근피로도 측정을 위한 중간 주파수와 Spike 파라미터의 신뢰도 비교 및 향상된 Spike 검출 알고리듬에 관한 연구

  • 이성주 (서울시립대학교 전자전기컴퓨터공학과) ;
  • 홍기룡 (서울시립대학교 전자전기컴퓨터공학) ;
  • 이태우 (서울시립대학교 전자전기컴퓨터공학) ;
  • 이상훈 (서울시립대학교 전자전기컴퓨터공학) ;
  • 김성환 (서울시립대학교 전자전기컴퓨터공학과)
  • Published : 2004.05.01

Abstract

This study proposed an improved spike detection algorithm which automatically detects suitable spike threshold on the amplitude of surface electromyography(SEMG) signal during isometric contraction. The EMG data from the low back muscles was obtained in six channels and the proposed signal processing algorithm is compared with the median frequency and Gabriel's spike parameter. As a result, the reliability of spike parameter was inferior to the median frequency. This fact indicates that a spike parameter is inadequate for analysis of multi-channel EMG signal. Because of uncertainty of fixed spike threshold, the improved spike detection algorithm was proposed. It automatically detects suitable spike threshold depending on the amplitude of the EMG signal, and the proposed algorithm was able to detect optimal threshold based on mCFAR(modified Constant False Alarm Rate) in the every EMG channel. In conclusion, from the reliability points of view, neither median frequency nor existing spike detection algorithm was superior to the proposed method.

Keywords

References

  1. http://www.safety.or.kr/
  2. S. J. Bigos, M.C. Battie, 'The Lumbar Spine,' In J. M. Weinstein & S. W. Wiesel, (Eds), W. B. Saunders, Philadelphia, 1990
  3. Emley, M.S., Gilmore, L.D., Roy, A.H., 'Electromyography', Potentials, IEEE,vol.11, pp.25-28, April 1992 https://doi.org/10.1109/45.127725
  4. W. W. Lu, K. D. K. Luk, K. M. C. Cheung, J. C. Y. Leong, 'Using EMG to evaluate muscle function in patients with Low Back Pain(LBP) symdromes' Engineering in Medicine and Biology Society, Proceedings of the 20th Annual International Conference of the IEEE, vol. 5, pp.2666-2669, Oct.-1 Nov. 1998 https://doi.org/10.1109/IEMBS.1998.745174
  5. S. H. Roy, D. Casavant, M. Emley, L. D. Gilmore, C. J.De,Luca, 'EMG spectral analysis of muscle fatigue associated with chronic Low Back Pain', Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE, vol.4, pp.1732-1733 Nov. 1988 https://doi.org/10.1109/IEMBS.1988.94957
  6. 김태훈, 양덕진, 강병길, 조일준, 이진, 김성환, '저작근의 근전도 휴지기와 근육피로와희 관계', 대한전기학회, 제 50D권 5호, pp. 247-254, 2001. 5월
  7. David A. Gabriel, 'Reliability of SEMG spike parameters during concentric contractions', Electromyogr. clin. Neurophsiol., 2000. 40, 423-430
  8. Yamada. Y., et. al., 'A Measuring System for EMG Silent Period using a Microcomputer', IEEE Trans. on Biomed. Eng., vol. 29, No. 11, pp. 713-719, 1982 https://doi.org/10.1109/TBME.1982.325001
  9. Takada. K., et al., 'Automatic Detection and Measurement of EMG Silent Periods in Masticatory Muscles', Electromyogr. clin. Neuroph-ysio., vol. 32, pp.499-505, 1992
  10. Bessette, R., Bishop, B., and Mohl, N., 'Duration of Messeteric Silent Period in Patients with TMJ syndrome', J. Applied Physiol., vol. 30, No.6, pp. 864-869, 1971
  11. Lars, I.E. Oddsson and Carlo J. De Luca, 'Activation imbalances in lumbar spine muscles in the presence of chronic low back pain', J. Applied Physiol. vol. 94, pp.1410-1420, 2003
  12. David A. Gabriel, Jeffrey R. Basford, Kai-Nan An, 'Assessing fatigue with eletromygraphic spike paremeter', Engineering in Medicine and Bology Magazine, IEEE, vol.20, pp.90-96, 2001 https://doi.org/10.1109/51.982280
  13. F. X. Hofele, 'An innovative CFAR slgorithm',Radar, CIE International Conference on, Proceedings, pp.329-333, 2001 https://doi.org/10.1109/ICR.2001.984684
  14. Lei Zhao; Weixian Liu; Xin Wu;Fu, J.S, 'A novel approach for CFAR processors design', Radar Conference, Proceedings of the 2001 IEEE, 1-3 May 2001 pp. 284-288, 2001 https://doi.org/10.1109/NRC.2001.922992
  15. Shan Tao, Tao Ran, Wang Yue, Zhon Siyong, 'Performance of order statistic clutter map CFAR' Signal Processing, vol.2. pp.1572, 2002
  16. Signal Processing v.2 Performance of order statistic clutter map CFAR Shan Tao;Tao Ran;Wang Yue;Zhon Siyong