Effect of Prosthetic Foot-Ankle Stiffness on Standing and Walking Performance in Transfemoral Prosthesis Users

假肢足踝刚度对经股假肢使用者站立和行走性能的影响

• 批准号: 10535637
• 负责人: Steven A. Gard
• 金额: --
• 依托单位: JESSE BROWN VA MEDICAL CENTER
• 依托单位国家: 美国
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-10-01 至 2025-09-30
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10535637
• 关键词: Affect; Amputation; Amputees; Anatomy; Ankle; Biomechanics; Characteristics; Data; Development; Equation; Equilibrium; Exertion; Femur; Foot joint structure; Future; Gait; Guidelines; Individual; Investigation; Kinetics; Knee; Knee Prosthesis; Knee joint; Laboratories; Leg; Lower Extremity; Manufacturer; Materials Testing; Measures; Mechanics; Mission; Modeling; Motion; Patient Care; Perception; Performance; Persons; Phase; Population; Property; Prosthesis; Quality of life; Questionnaires; Radial; Recommendation; Recovery; Reporting; Research Personnel; Research Subjects; Series; Shapes; Speed; Testing; Validation; Veterans; Veterans Health Administration; Walking; Water; ankle joint; ankle prosthesis; experimental study; foot; improved; joint stiffness; kinematics; mechanical properties; novel; preference; prospective; prosthesis fitting; prosthesis wearer; prosthetic foot; research study; response; sound; tool; walking speed

The anatomical foot and ankle joint provide important functions during gait, so fitting lower-limb prosthesis users with components that replicate these functions is rational and desirable. However, it is not currently known how to best combine and tune prosthetic foot and ankle stiffness to enhance a prosthesis user’s walking and standing performance simultaneously. Furthermore, altering prosthetic foot-ankle stiffness could adversely affect prosthetic knee stability in transfemoral prosthesis users. Therefore, we propose to systematically vary the stiffness of the prosthetic foot and ankle joint combination in transfemoral prosthesis users to help establish prescription guidelines for prosthetists to consider when fitting prosthetic ankle units with prosthetic feet. The Veterans Health Administration (VHA) reported that between 1989-1998, 29% of amputations were performed at the transfemoral level. This emphasizes the strong relevance and potentially high impact of this research study on current Veterans, which is directly applicable to the VHA’s Patient Care Mission.

解剖足和踝关节在步态中提供重要功能，因此适合下肢假肢使用者 具有复制这些功能的组件是合理的和可取的。然而，目前还不知道如何 为了最好地联合收割机和调节假足和踝的硬度 性能同时此外，改变假肢脚踝关节的刚度可能会对 经股骨假体使用者的假体膝关节稳定性。因此，我们建议系统地改变 在经股骨假体使用者中，假体足和踝关节组合的刚度有助于建立 处方指南，供假肢医生在安装假肢踝关节和假肢脚时考虑。的 退伍军人健康管理局（VHA）报告说，在1989年至1998年期间，29%的截肢手术 在股动脉层面这强调了这项研究的强相关性和潜在的高影响力 目前的退伍军人，这是直接适用于VHA的病人护理使命。