Portable Gait-Event Detection System for FES Locomotion

FES 보행을 위한 휴대용 보행 이벤트 검출 시스템

  • 공세진 (건국대 의료생명대 의학공학부) ;
  • 김철승 (건국대 의료생명대 의학공학부) ;
  • 박관용 (건국대학교 충주병원 물리치료실) ;
  • 엄광문 (건국대 의료생명대 의학공학부)
  • Published : 2006.05.01

Abstract

The purpose of this study is to develop a portable gait-event detection system which is necessary for the cycle-to-cycle FES(functional electrical stimulation) control of locomotion. To make the system portable, we made following modifications in the gait signal measurement system. That is, 1) to make the system wireless using Bluetooth communication, 2) to make the system small-sized and battery-powered by using low power consumption ${\mu}$ P(ATmega8535L). The gait-events were analyzed in off-line at the main computer using ANN(Artificial Neural Network). The Proposed system showed no mis-detection of the gait-events of normal subject and hemiplegia subjects. The performance of the system was better than the previous wired-system.

Keywords

References

  1. Khang. G, 'Exercise of Paralyzed Muscles and Paraplegic Walking Induced by FFS.' J. of KSPE, Vol. 19, No. 4, pp. 41-51, 2002
  2. Eom. G. M, Khang. G, Lee, S. H, 'Restoration of Motor Function using Electrical Stimulation: Functional Electrical Stimulation (FES),' J. of KSPE, Vol. 20, No. 1, pp. 26-35, 2003
  3. Pappas, I. P. I., Keller, T., Mangold, S., Popovic M. R., Dietz, V., Morari M., 'A Reliable Gyroscope-Based Gait-phase Detection Sensor Embedded in Shoe Insole,' IEEE Sensors Journal, Vol. 4, No. 2, pp. 268-274, 2004 https://doi.org/10.1109/JSEN.2004.823671
  4. Kostov, A., Chizeck, H. J., 'Functional Error Assessment in Gait Event Discrimination For FES-assisted Locomotion,' 18th annual international Conference of the IEEE Engineering in Medicine and Biology Society, Vol. 1, pp. 461-462, 1996 https://doi.org/10.1109/IEMBS.1996.657043
  5. Kobetic, R. Marsolais, E. B., 'Synthesis of Paraplegic gait with Multichannel Functional Neuromuscular Stimulation,' IEEE trans. Rehab. Eng., Vol. 2, pp. 66-79, 1994 https://doi.org/10.1109/86.313148
  6. Stein, R. B., Peckham, P. H., Popovic, D. P., 'Methods to control functional electrocal stimulation,' in proc. 1st FES Intern. Symp on FES, Sendai, pp. 135-140, 1992
  7. Skelly, M. M., Chizeck, H. J., 'Real-time gait event detection for paraplegic FES walking,' IEEE Transactions on neural systems and rehabilitation engineering, Vol. 9, No. 1, pp. 59-68, 200 https://doi.org/10.1109/7333.918277
  8. Skelly, M. M., Chizeck, H. J., 'Real-time gait event detection during FES paraplegic walking,' Proceedings19th international conference-IEEE/EMBS, Vol. 5, pp. 1932-1937, 1997 https://doi.org/10.1109/IEMBS.1997.758716
  9. Ng, S. K., Chizeck, H. J., 'Fuzzy Model Identification For Classification of Gait Events in Paraplegics,' IEEE Tras, Vol. 5, No. 4, pp. 536-544, 1997 https://doi.org/10.1109/91.649904
  10. Seoung. C. A, Sung. J. H, Sung. G. K, Young. H. K, 'Development and Evaluation of a New Gait Phase Detection System using FSR Sensors and a Gyrosensor,' J. of KSPE, Vol. 21, No. 10, pp. 196-203, 2004
  11. Marsolais, E. B., Kobetic, R., 'Functional electrical stimulation for walking in paraplegia,' J. Bone Joint Surg., Vol. 69-A, pp. 728-733, 1987 https://doi.org/10.2106/00004623-198769050-00014
  12. Williamson, R., Andrews, B. J., 'Gait Event Detection for FES Using Accelerometers and Supervised Accelerometer Learning,' IEEE Transactions on rehabilitation Engineering, Vol. 8, No. 3, pp. 312-319, 2000 https://doi.org/10.1109/86.867873
  13. Furuse, N., Cikajlo, I., Bajd, T., Watanabe, T., Hoshimiya, N., 'Training of Stance Phase during FES Assisted Walking,' proceeding of the 7th Annual Conference of IFESS, pp. 63-65, 2002
  14. 허지운, 엄광문, 강곤, 'FES 보행을 위한 인공신경망을 이용한 보행 이벤트 검출,' 대한의용생체공학회 춘계학술대회 논문집, 2004
  15. 허지운, 김철승, 엄광문, 'FES 보향을 위한 이벤트 검출', 한국정밀공학회지, Vol. 22, No. 3, pp. 170-178, 2005