Wright D A, Marks L, Payne R C
School of Sport and Education, Brunel University, Uxbridge, Middlesex, UK.
Prosthet Orthot Int. 2008 Mar;32(1):57-67. doi: 10.1080/03093640701669108.
The physiological cost of walking is greater in bilateral amputees (BA) than in both unilateral amputee and non-pathological gait. The aim of this study was to describe the physiological costs and other standard gait characteristics in a sample population of BA, walking at self-selected (comfortable) speeds. Amputees had bilateral trans-tibial, bilateral trans-femoral or trans-tibial/trans-femoral amputations as a result of trauma or congenital defects. All amputees wore their own prosthetic limbs which were either full-length prostheses or short non-articulating pylon prostheses (SNAPPs). The results were compared with a base line data set collected from a non-pathological control group. It was anticipated that amputees with high-level amputations would walk at the slowest speeds, have the highest physiological costs and lowest perception of walking ability. However, varying walking speeds resulted in varying exercise intensities, exercise heart rates and perceptions of walking that could not be directly related to amputation levels. It is therefore concluded that bilateral amputee gait is complex, varied and not easily categorized.
双侧截肢者行走的生理成本高于单侧截肢者和非病理性步态者。本研究的目的是描述双侧截肢者样本群体以自我选择（舒适）速度行走时的生理成本和其他标准步态特征。截肢者因创伤或先天性缺陷而进行双侧胫骨截肢、双侧股骨截肢或胫骨/股骨截肢。所有截肢者均佩戴自己的假肢，这些假肢要么是全长假肢，要么是短的无关节支具假肢（SNAPPs）。将结果与从非病理性对照组收集的基线数据集进行比较。预计高位截肢者行走速度最慢，生理成本最高，行走能力感知最低。然而，不同的行走速度导致不同的运动强度、运动心率和行走感知，这些与截肢水平没有直接关系。因此得出结论，双侧截肢者的步态复杂、多样且不易分类。
