Korean Journal of Applied Biomechanics (한국운동역학회지)

Korean Society of Applied Biomechanics (한국운동역학회)
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Evaluation of Insole-equipped Ankle Foot Or thosis for Effect on Gait based on Biomechanical Analysis

인솔 장착형 단하지 보조기의 생체 역학적 분석을 통한 보행 영향성 평가

  • Jung, Ji-Yong (Department of Healthcare Engineering, Graduate School of Chonbuk National University) ;
  • Kim, Jin-Ho (Department of Healthcare Engineering, Graduate School of Chonbuk National University) ;
  • Kim, Kyung (National Rehabilitation Center Research Institute) ;
  • Trieu, Pham Hai (School of Electronics and Computer Engineering, Chonnam National University) ;
  • Won, Yong-Gwan (School of Electronics and Computer Engineering, Chonnam National University) ;
  • Kwon, Dae-Kyu (Division of Biomedical Engineering, College of Engineering, Chonbuk National University) ;
  • Kim, Jung-Ja (Division of Biomedical Engineering, College of Engineering, Chonbuk National University)
  • 정지용 (전북대학교 대학원 헬스케어공학과) ;
  • 김진호 (전북대학교 대학원 헬스케어공학과) ;
  • 김경 (국립재활원 재활연구소) ;
  • ;
  • 원용관 (전남대학교 공과대학 전자컴퓨터공학부) ;
  • 권대규 (전북대학교 공과대학 바이오메디컬공학부) ;
  • 김정자 (전북대학교 공과대학 바이오메디컬공학부)
  • Received : 2010.10.31
  • Accepted : 2010.12.15
  • Published : 2010.12.31
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Abstract

The purpose of this study was to evaluate the effects of insole-equipped ankle-foot-orthoses (AFO) on gait. 10 healthy males who had no history of injury in the lower extremity participated in this study as the subjects. The foot of each subject was first scanned, and the insole fit to the plantar was made using BDI-PCO(Pedcad Gmbh, Germany). The subject then was made to walk on a treadmill under four experimental conditions: 1) normal walking, 2) walking wearing AFO, 3) walking wearing AFO equipped with the insole, 4) walking wearing pneumatic-ankle-foot-orthosis (pAFO) equipped with the insole. During walking, foot pressure data such as maximum force, contacting area, peak pressure, and mean pressure was collected using Pedar-X system (Novel Gmbh, Germany) and EMG activity of lower limb muscles such as gastrocnemius medial head, gastrocnemius lateral head, and soleus was recorded using MP150 EMG module (BIOPAC System Inc., USA). Collected data was then analyzed using paired t-test in order to investigate the effects of the insole. As a result of the analysis, when insole was equipped, overall contacting area was increased while both the highest peak pressure and the mean pressure were significantly decreased, and EMG activity of the lower limb muscles was decreased. On the contrary, the cases of wearing AFO showed the decreased contacting area and the increased pressures. Therefore, the AFO equipped with a proper insole fit well to the foot can help comfortable walking by spreading the pressure over the entire plantar.

Keywords

References

  1. 김경, 권대규, 강승록, 박용군, 정구영(2010). 인공공압근육 액추에이터를 이용한 족관절 보조기의 족저굴곡 토크평가. 한국정밀공학회지, 27(6), 82-89.
  2. 박승범, 이중숙(2008). 족저압력을 활용한 테니스화 기능성 평가. 한국운동역학회지, 18(4), 89-87.
  3. 박승범, 이경득, 김대웅, 유중현, 김경훈, 안창신, 이태용(2010). 한국인 족형을 적용한 트레일 러닝화의 생체역학적 분석. 한국운동역학회지, 20(2), 221-230. https://doi.org/10.5103/KJSB.2010.20.2.221
  4. 이규환, 박시복, 이상건, 이강목(1996). 족저압 측정에 의한 정상인 Stance Phase의 분석. 대한재활의학회지, 20(2), 524-531.
  5. 황성재, 김정윤, 황선홍, 박선우, 이진복, 김영호(2007). 족하수 방지를 위한 능동형 단하지 보조기의 개발 및 평가. 대한인간공학회지, 26(2), 131-136.
  6. Bus, S. A., Ulbrecht, J. S., & Cavanagh, P. R.(2004). Pressure relief and load redistribution by custom-made insoles in diabetic patients with neuropathy and foot deformity. Clinical Biomechanics, 19, 629-638. https://doi.org/10.1016/j.clinbiomech.2004.02.010
  7. Chen, W. P., Ju, C. W., & Tang, F. T.(2003). Effects of total contact insoles on the plantar stress redistribution : a finite element analysis. Clinical Biomechanics, 25, 265-270.
  8. Dixon, S. J., Collop, A. C., & Batt, M.(2000). Surface effects on ground reaction forces and lower extremity kinematics in running. Medicine & Science in Sports & Exercise, 32(11), 1919-1926. https://doi.org/10.1097/00005768-200011000-00016
  9. Hesse, M. D., Werner, M. S., Matthias, M. D., Stephen, M. D., & Berteanu, M. D.(1999). Non-velocity-related effects of a rigid double-stopped ankle-foot orthosis on gait and lower limb muscle activity of hemiparetic subjects with an equinovarus deformity. Stroke, 30, 1855-1861. https://doi.org/10.1161/01.STR.30.9.1855
  10. Josef, F.(2001). EMG-interference pattern analysis. Journal of Electromyography and Kinesiology, 11(4), 231-246. https://doi.org/10.1016/S1050-6411(01)00006-2
  11. Marshall, R. N., Hreljac, A., & Hume, P. A.(2000). Evaluation of lower extremity overuse injury potential in runners. Medicine & Science in Sports & Exercise, 32(9), 1635-1641.
  12. Nene, A., Mayagoitia, R., & Veltink, P.(1999). Assessment of rectus femoris function during initial swing phase. Gait & Posture, 9, 1-9. https://doi.org/10.1016/S0966-6362(98)00042-3
  13. Norkin, C. C., & Levangie, P. K.(1983). Joint Structure & Function : A Comprehensive Analysis. F.A. Davis.
  14. Perry, J.(1974). Kinesiology of lower extremity bracing. Clinical Orthopaedics and Related Research, 102, 18-31. https://doi.org/10.1097/00003086-197407000-00004
  15. Ramanathan, A. K., Kiran, P., Arnold, G. P., Wang, W., & Abboud, R. J.(2010). Repeatability of the Pedar-X in-shoe pressure measuring system. Foot and Ankle Surgery, 16, 70-73. https://doi.org/10.1016/j.fas.2009.05.006
  16. Windle, C. M., Gregory, S. M., & Dixon, S. J.(1999). The shock attenuation characteristics of four different insoles when worn in a military boot during running and marching. Gait & Posture, 9(1), 31-37. https://doi.org/10.1016/S0966-6362(99)00002-8
  17. Yamamoto, S., Ebina, M., Kubo, S., Kawai, H., Hayashi, T.,Iwasaki, M., Kubota, T., & Miyazaki, S.(1993). Quantification of the effect of dorsi-/plantarflexibility of ankle-foot orthosis on hemiplegic gait : A preliminary report. Journal of Prosthetics and Orthotics, 3, 88-94.
  18. Zajac, F. E., Neptune R. R., & Kautz S. A.(2002). Biomechanics and muscle coordination of human walking : Introduction to concepts, power transfer, dynamics and simulations. Gait & Posture, 16, 215-232. https://doi.org/10.1016/S0966-6362(02)00068-1

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