Stefanyshyn D J, Engsberg J R, Tedford K G, Harder J A
Human Performance Laboratory, University of Calgary, Alberta, Canada.
Prosthet Orthot Int. 1994 Dec;18(3):180-90. doi: 10.3109/03093649409164403.
The purpose of this pilot investigation was to develop a method to test the influence of specific prosthetic features in preventing trans-tibial amputees from walking like able-bodied subjects. An able-bodied subject was fitted with a patellar-tendon-bearing orthosis incorporating several features of an amputee's prosthesis. Kinetic, kinematic and metabolic data were collected as features were systematically removed from the orthosis. While wearing the orthosis the gait of the able-bodied subject closely simulated trans-tibial amputee gait kinematically, kinetically and metabolically. Although it was obvious that the various prosthetic features influenced the kinetics and kinematics of gait, they were difficult to quantify with only a single subject. However, the two features which appeared to have the largest influence in preventing trans-tibial amputees from walking like able-bodied subjects were patellar tendon loading and a solid ankle.
这项初步研究的目的是开发一种方法，以测试特定假肢特征对防止经胫截肢者像健全人一样行走的影响。一名健全受试者佩戴了一种带有截肢者假肢若干特征的髌腱承重矫形器。随着矫形器的特征被系统地去除，收集了动力学、运动学和代谢数据。在佩戴矫形器时，健全受试者的步态在运动学、动力学和代谢方面紧密模拟了经胫截肢者的步态。虽然很明显各种假肢特征会影响步态的动力学和运动学，但仅用一名受试者很难对其进行量化。然而，在防止经胫截肢者像健全人一样行走方面似乎影响最大的两个特征是髌腱负荷和坚固的踝关节。
