International Journal of Precision Engineering and Manufacturing

  • 제9권1호
  • /
  • Pages.30-33
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  • 2008
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  • 2234-7593(pISSN)
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  • 2005-4602(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

A Musculoskeletal Model for Biomechanical Analysis of Transfemoral Amputees Climbing Stairs

  • Bae, Tae-Soo (Biomechanics team, Korea Orthopedics and Rehabilitation Engineering Center) ;
  • Kim, Shin-Ki (Biomechanics team, Korea Orthopedics and Rehabilitation Engineering Center) ;
  • Mun, Mu-Seong (Biomechanics team, Korea Orthopedics and Rehabilitation Engineering Center)
  • 발행 : 2008.01.01
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초록

Understanding the characteristics of amputee gait is key in developing more advanced prostheses. The aim of this study was to quantitatively analyze a stair-climbing task for transfemoral amputees with a prosthesis and to predict the muscle forces and joint moments at musculoskeletal joints using a dynamic analysis. A three-dimensional musculoskeletal model of the lower extremities was constructed from a gait analysis using transformation software for two transfemoral amputees and ten healthy people. The measured ground reaction forces and kinematical data of each joint from the gait analysis were used as input data for an inverse dynamic analysis. Dynamic analyses of an transfemoral amputee climbing stairs were performed using musculoskeletal models. The results showed that the summed muscle forces of the hip extensor of an amputated leg were greater than those of a sound leg. The opposite was true at the hip abductor and knee flexor of an amputated leg. We also found that higher moments at the hip and knee joints of the sound leg were required to overcome the flexion moment caused by the body weight and amputated leg. Dynamic analyses using musculoskeletal models may be a useful means to predict muscle forces and joint moments for specific motion tasks related to rehabilitation therapy.

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참고문헌

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