대한전기학회논문지:시스템및제어부문D (The Transactions of the Korean Institute of Electrical Engineers D)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

시계열 분석을 이용한 정상인의 보행 가속도 신호의 모델링

Modeling of Normal Gait Acceleration Signal Using a Time Series Analysis Method

  • 임예택 (연세대 보건과학대 의공학과) ;
  • 이경중 (연세대 보건과학대 의공학과) ;
  • 하은호 (연세대 문리대 정보통계학과) ;
  • 김한성 (연세대 보건과학대 의공학과)
  • 발행 : 2005.07.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, we analyzed normal gait acceleration signal by time series analysis methods. Accelerations were measured during walking using a biaxial accelerometer. Acceleration data were acquired from normal subjects(23 men and one woman) walking on a level corridor of 20m in length with three different walking speeds. Acceleration signals were measured at a sampling frequency of 60Hz from a biaxial accelerometer mounted between L3 and L4 intervertebral area. Each step signal was analyzed using Box-Jenkins method. Most of the differenced normal step signals were modeled to AR(3) and the model didn't show difference for model's orders and coefficients with walking speed. But, tile model showed difference with acceleration signal direction - vertical and lateral. The above results suggested the proposed model could be applied to unit analysis.

키워드

참고문헌

  1. M. Sekine,, Y. Abe, M.Sekimoto, Y. Higashi , T. Fujimoto, T. Tamura, Y. Fukui, 'Assessment of gait parameter in hemiplegic patients by accelerometry', Proceedings of the 22nd Annual EMBS International Conference, pp. 1879-1882, 2000 https://doi.org/10.1109/IEMBS.2000.900456
  2. R. Moe-Nilssen, 'A new method for evaluating motor control in gait under real-life environmental conditions. Part 1: The instrument', Clin Biomech, vol. 13, pp. 320-327, 1998 https://doi.org/10.1016/S0268-0033(98)00089-8
  3. R. Moe-Nilssen, 'A new method for evaluating motor control in gait under real-life environmental conditions. Part 2: Gait analysis', Clin Biomech, vol. 13, pp. 328-335, 1998 https://doi.org/10.1016/S0268-0033(98)00090-4
  4. M.Henriksen, H. Lund., R. Moe-Nilssen, H. Bliddal, B. Danneskiod-$Sams{\o}e$, 'Test-retest reliability of trunk accelerometric gait analysis', Gait & Posture, vol. 19, pp. 288-297, 2004 https://doi.org/10.1016/S0966-6362(03)00069-9
  5. B. Auvinet, D. Chaleil, E. Barrey, 'Accelerometric gait analysis for use in hospital outpatients', Revue du Rhumatisme, vol. 66, pp. 389-397, 1999
  6. B. Auvinet, G. Berrut, C. Touzard, L. Moutel, N. Collet, D. Chaleil, B.Barrey, 'Reference data for normal subjects obtained with an accelerometric device', Gait & Posture, vol. 16, pp. 124-134, 2002 https://doi.org/10.1016/S0966-6362(01)00203-X
  7. S.P. Joseph, M.R.S. Reddy, V. Jagadeesh Kumar, 'Automatic detection of PVC's using Autoregressive models', Proceedings of the 19nd Annual International Conference-IEEE/EMBS, pp. 68-71, 1997 https://doi.org/10.1109/IEMBS.1997.754465
  8. V.A. Maiorescu, M. Serban, A.M. Lazar, 'Classification of EEG signals represented by AR models for cognitive tasks - a neural network based method, SCS(Signals, Circuits and Systems) 2003. International Symposium , vol. 2, pp. 441-444, 2003 https://doi.org/10.1109/SCS.2003.1227084
  9. M. Tsuruoka, R. Shibasaki, Y. Yasuoka. Y. Tsuruoka, S.Murai, 'Analysis of impulse response on walking stability by a synchronized system of two accelerometers', Proceedings of Computer-Based Medical Systems 2001-14th IEEE Symposium, pp. 348- 353, 2001 https://doi.org/10.1109/CBMS.2001.941744
  10. M. Tsuruoka, R. Shibasaki,Y. Yasuoka, Y.Tsuruoka, S. Murai, 'Analysis of impulse response on walking stability using Accelerometers', Proceeding of the 26th Annual Internationanl Conference of the IEEE EMBS, pp. 4924-4927, 2004 https://doi.org/10.1109/IEMBS.2004.1404361
  11. 최병선, '단변량 시계열 분석', 世徑社, 2001
  12. 이재영, 이경중, 김영호, 이성호, 박시운, '가속도계를 이용한 편마비 환자의 보행 분석 알고리즘 개발', 대한전자공학회, vol. 41, no. 4, pp. 231-238, 2004
  13. D. Villanueva, A Trujillo, E. Fermon, E. Cardiel, Pablo-Ro. Hedz, 'Method for monitoring acceleration of the trunk during gait', Proceedings of the Second Joint EMBS/BMES Conference, pp. 1758-1759, 2002 https://doi.org/10.1109/IEMBS.2002.1106638
  14. 신기일, '시계열 분석', 敎友社, 2002