Korean Journal of Computational Design and Engineering (한국CDE학회논문집)

Society for Computational Design and Engineering (한국CDE학회)
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Changes in Medio-lateral Knee Joint Reaction Force of Patients with Over-pronation during Gait Due to Insole Parameters - A Case Study

인솔 설계 변수에 따른 발목 과-회내 환자의 보행 시 좌우 방향 무릎 관절 하중의 변화 - 사례 연구

  • Lee, Sang-Jun (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Baek, Seung-Yeob (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Son, Jin-Kyou (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Kim, Dong-Wook (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Lee, Kun-Woo (School of Mechanical and Aerospace Engineering, Seoul National University)
  • 이상준 (서울대학교 기계항공공학부) ;
  • 백승엽 (서울대학교 기계항공공학부) ;
  • 손진규 (서울대학교 기계항공공학부) ;
  • 김동욱 (서울대학교 기계항공공학부) ;
  • 이건우 (서울대학교 기계항공공학부)
  • Received : 2012.02.07
  • Accepted : 2012.05.07
  • Published : 2012.06.01
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Abstract

The ankle over-pronation causes the mechanical overloading transferred to proximal areas (i.e. knees or hips) over time. Thus, the over-pronation is recognized as a contributory factor in a wide variety of musculo-skeletal pathologies in lower extremities. Commonly, over-pronated ankles are treated using specially designed insoles that support medial heels and correct the posture of lower limbs. However, the biomechanical effects of the insoles are not yet fully understood, so there still are controversies whether such insoles really have clinical significance. In this study, in order to verify the effects of insoles and determine the best shape of the insoles, we examined how the medio-lateral knee joint reaction force changes due to insole conditions through a case study about a subject. As a result, it is revealed that the medial heel post, which drastically reduced the peak medio-lateral knee joint reaction force, has significant effects on the gait of the over-pronated patients. However, in case that the arch support is combined together, the positive effect of the medial heel post may rather decrease.

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References

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