Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
권호 표지
DOI QR코드

DOI QR Code

Pressure Analysis of Plantar Musculoskeletal Fascia while Walking using Finite Element Analyses

상세유한요소 모델링을 통한 보행중인 인체족부의 족저압 해석

  • Jeon, Seong-Mo (Dept. of Mechanical Engineering, Kyungpook Nat'l Univ.) ;
  • Kim, Cheol (Dept. of Mechanical Engineering, Kyungpook Nat'l Univ.)
  • 전성모 (경북대학교 기계공학부) ;
  • 김철 (경북대학교 기계공학부)
  • Received : 2012.02.20
  • Accepted : 2012.05.23
  • Published : 2012.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

An efficient 3D finite element walking model that considers the detailed shapes of muscles, ligaments, bones, skin, and soles was developed based on a real computed tomography (CT) scan image of a foot, and nonlinear contact analyses were performed to investigate pressure changes. The highest pressure occurs at the rear bottom of the foot when standing and walking. The pressure on the outsole with a curved foot bottom surface is lessened and distributed over a wider area than in the case of a flat outsole. The result shows that a shoe sole shape optimized for diabetes patients can relieve the foot pressure concentration and prevent further worsening of symptoms.

단층촬영 영상정보를 이용하여 근육, 연부조직 및 골 구조 등을 포함한 발의 상세한 유한요소해석모델을 개발하여 보행과정을 모사하였고, 발과 직접 접촉하는 신발밑창 형상의 고려 여부에 따른 보행 중의 발바닥 압력의 변화를 비선형 접촉해석으로 계산하였다. 해석결과 직립 정지상태나 보행 중에는 공통으로 뒤꿈치가 지면에 닿을 때 압력집중이 가장 높았으며, 편평한 밑창보다 발바닥 곡면과 같은 밑창을 사용한 보행해석에서 뒤꿈치의 압력집중이 덜하고 접촉면이 더 넓었다. 이러한 보행모델 및 해석은 발바닥의 압력집중에 취약한 당뇨병 환자 전용 의료보조신발(압력을 넓게 분포시켜 집중의 강도를 낮출 수 있는) 개발의 수단으로 활용될 수 있음을 보였다.

Keywords

References

  1. Oh, D. W., Chon, S. H. and Shim, J. H., 2010, "Effect of Shoe Heel Height on Standing Balance and Muscle Activation of Ankle Joint," Journal of the Ergonomics Society of Korea, Vol. 29, pp. 789-795. https://doi.org/10.5143/JESK.2010.29.5.789
  2. Kim, J. H. and Hwang, I. G. 2004, "Develoment of Functional Shoes for Old People," Proceedings of the KISE, Vol. 9, pp. 61-67.
  3. Kim, K. H., Kim, Y. H., Kim, S. K., Yang, G. T. and Mun, M. S. 1996, "Development of Transfemoral Prostheses and Its Gait Analysis," Proceedings of the KSME Fall Annual Meeting, pp. 303-308.
  4. Seo, J. T. and Yi, B. J. 2009, "Modeling and Analysis of a Biomimetic Foot Mechanism," Journal of the Korean society of Machine Tool Engineers, Vol. 18, No. 5, pp. 521-528.
  5. Cheung, T. M., Zhang, M. and An, K. N., 2006, "Effect of Achilles Tendon Loading on Plantar Fascia Tension in the Standing Foot," Clinical Biomechanics, Vol. 21, pp. 194-203. https://doi.org/10.1016/j.clinbiomech.2005.09.016
  6. Hodge, M. C., Bach, T. M. and Carter, G. M., 1999, "Orthotic Management of Plantar Pressure and Pain in Rheumatoid Arthritis," Clinical Biomechanics, Vol. 14, pp. 567-575. https://doi.org/10.1016/S0268-0033(99)00034-0
  7. Kim, I. M. and Lee, I. M. 2008, "Bio-Medical Enginnering Applications Using Mimics S/W," proceedings of the KSME Spring Annual Meeting, pp. 106-107.
  8. Cheung, J. T., Zhang, M., Leung, A. K. and Fan, Y. B., 2005, "Three-Dimensional Finite Element Analysis of the Foot During Standing - A Material Sensitivity Study," Journal of Biomechanics, Vol. 38, pp. 1045-1054. https://doi.org/10.1016/j.jbiomech.2004.05.035
  9. NASTRAN, NASTRAN Release 2010.1.3 documentation.
  10. Mooney, M., 1940, "A Theory of Large Elastic Deformation," Journal of Applied Physics, Vol. 11, pp. 582-592. https://doi.org/10.1063/1.1712836
  11. Cheung, J. T. and Zhang, M. 2006, "Finite Element Modeling of the Human Foot and Footwear," ABAQUS Users' Conference.
  12. Moon, J., 2010, Finite Element Analysis of Foot-Ankle Joint for Gait and Biomechanical Evaluation of Curved Point, Master Thesis, Inje University.
  13. Antunes, P. J., Dias, G. R., Coelho, A. T., Rebelo, F. and Pereira, T., 2003, "Non-Linear Finite Element Modelling of Anatomically Detailed 3D Foot Model," Materialise, leuven, Belgium.
  14. Zhang, M. and Mak, A. F. T., 1999, "In Vivo Friction Properties of Human Skin," Prosthetics and Orthotics International, Vol. 23, pp. 135-141.
  15. Qiu, T. X., Teo, E. C., Yan, Y. B. and Lei, W., 2011, "Finite Element Modeling of a 3D Coupled Foot-boot Model," Medical Engineering & Physics, Vol. 33, pp.1228-1233. https://doi.org/10.1016/j.medengphy.2011.05.012
  16. Song, D. R., Lee, S. J. and Chen, W. M.,. 2007, "Construction and Validation of a Finite Element Model for Foot-Ankle Joint Complex with Detailed Anatomical Elements," Proceedings of the KSPE Autumn Annual Meeting, pp. 167-168.
  17. Kim, S. H., Cho, J. R. and Lee, S. B. 2009, "Evaluation of Landing Impact Characteristics of Sport Shoes in Running by Finite Element Analysis," Korean Journal of Sport Biomechanics, Vol. 19, No. 2, pp. 217-225. https://doi.org/10.5103/KJSB.2009.19.2.217
  18. Song, S. J., Kim, S. Y., Kim, Y. T. and Lee, S. D., 2010, "Computation of Ground Reaction Forces during Gait Using Kinematic Data," Transactions of the Korean Society of Mechanical Engineers A, Vol. 34, No. 4, pp. 431-437. https://doi.org/10.3795/KSME-A.2010.34.4.431

Cited by

  1. The effects of the length of rain boots on balance during treadmill walking vol.27, pp.10, 2015, https://doi.org/10.1589/jpts.27.3261