Medical & Biological Engineering & Computing

, Volume 46, Issue 6, pp 541–549

Biomechanical effect of electromechanical knee–ankle–foot-orthosis on knee joint control in patients with poliomyelitis

  • Sungjae Hwang
  • Sungjae Kang
  • Kanghee Cho
  • Youngho Kim
Original Article

Abstract

In this study, an ideal electromechanical KAFO, satisfying stability in the stance and knee flexion in the swing phase during walking, was developed. Biomechanical evaluations were performed on four polio patients by means of three-dimensional gait analyses and energy consumption studies. From the three-dimensional gait analysis on poliomyelitis patients, a considerable amount of knee flexion during the swing phase was observed in controlled-knee gait, which resulted in approximately 33% less energy consumption than in locked-knee gait. The developed electromechanical KAFO in this study was helpful in poliomyelitis patients having partial or complete paralysis of the lower extremity, providing both stability in the stance and free swinging of the knee. This unit was efficient in the transfer of energy.

Keywords

Electromechanical KAFO Poliomyelitis Patients Gait Analysis Energy Consumption Knee flexion 

Copyright information

© International Federation for Medical and Biological Engineering 2008

Authors and Affiliations

  • Sungjae Hwang
    • 1
  • Sungjae Kang
    • 1
  • Kanghee Cho
    • 2
  • Youngho Kim
    • 1
  1. 1.Department of Biomedical Engineering, Institute of Medical Engineering, Research Institute for Medical Instruments and Rehabilitation EngineeringYonsei UniversityWonju, GangwonSouth Korea
  2. 2.Department of Rehabilitation MedicineChungnam National University HospitalDaejon, ChungnamSouth Korea

Personalised recommendations