The effect of five prosthetic feet on the gait and loading of the sound limb in dysvascular below-knee amputees.
The effect of five prosthetic feet on the gait and loading of the sound limb in dysvascular below-knee amputees.
复制标题
五个假肢对膝下截肢者的步态和健全肢体负荷的影响。
DOI：
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发表时间：
1995
影响因子：
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通讯作者：
Jacqueline Perry
中科院分区：
文献类型：
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作者：
Ronald D. Snyder;C. Powers;C. Fontaine;Jacqueline Perry
本研究的目的是确定假足设计对一组膝下血管障碍截肢者的健全肢体和截肢肢体所经历的垂直地面反作用力的影响。步幅特征，关节运动，地面反作用力，同时记录在一个自我选择的自由行走速度在七个科目穿着五种不同的假肢脚（SACH，Flex-Foot，碳复制II，西雅图，量子）。受试者在测试前使用每只脚一个月。结果表明，健全的肢体暴露于更高的垂直地面反作用力比正常，尽管步行速度降低。使用Flex-Foot导致最低的健全肢体垂直力，这似乎与其背屈运动的大弧度有关。此外，健全肢体的膝关节屈曲负荷反应增加，表明这些受试者试图调节地板冲击。这些结果表明，完整的下肢是容易受到过度的地板冲击，假肢脚的设计可以有影响的幅度上的垂直力量所经历的肢体。
The purpose of this study was to determine the effects of prosthetic foot design on the vertical ground reaction forces experienced by the sound and amputated limbs in a group of persons with dysvascular below-knee amputations. Stride characteristics, joint motion, and ground reaction forces were recorded simultaneously during a self-selected free walking velocity in seven subjects wearing five different prosthetic feet (SACH, Flex-Foot, Carbon Copy II, Seattle, Quantum). Subjects used each foot for one month prior to testing. Results indicated that the sound limb was exposed to higher vertical ground reaction forces than normal despite a reduced walking velocity. Use of the Flex-Foot resulted in the lowest sound limb vertical forces, which appears to be related to its large arc of dorsiflexion motion. In addition, there was increased loading response knee flexion of the sound limb indicating an attempt by these subjects to modulate floor impact. These results suggest that the intact lower extremity is susceptible to excessive floor impact, and that prosthetic foot design can have an effect on the magnitude of the vertical forces experienced by the limb.