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

基本信息

批准号：
10731063
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
项目类别：
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/10731063
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

项目摘要

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.

解剖学上的足部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使用复制这些功能的组件是合理且可取的，但是目前尚不清楚如何实现。最好地结合和调整假肢足和踝关节的刚度，以增强假肢使用者的行走和站立能力同时表现。因此，我们建议系统地改变经股假肢使用者的假肢膝关节稳定性。经股假肢使用者的假足和踝关节组合的刚度，以帮助建立假肢师在安装假肢脚踝装置和假足时要考虑的处方指南。退伍军人健康管理局 (VHA) 报告称，1989 年至 1998 年间，有 29% 的截肢患者进行了截肢手术这强调了这项研究的强烈相关性和潜在的高影响力。针对当前退伍军人，直接适用于 VHA 的患者护理任务。