Optimization of Prosthetic Foot and Ankle Stiffness for Standing and Walking

站立和行走时假足和踝关节刚度的优化

基本信息

  • 批准号:
    10248289
  • 负责人:
  • 金额:
    --
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2016
  • 资助国家:
    美国
  • 起止时间:
    2016-02-01 至 2021-02-28
  • 项目状态:
    已结题

项目摘要

 DESCRIPTION: Persons who walk with lower-limb prostheses are generally less efficient ambulators than able-bodied individuals (Waters et al., 1976) and their stability is compromised, attributable in part t deficiencies in the function of their prostheses (Gard & Fatone, 2004). Anatomical ankle joint stiffness in able-bodied persons adapts with walking speed (Hansen et al., 2004) and for standing (Hansen & Wang, 2010). Fitting lower-limb amputees with prosthetic foot and ankle mechanisms that attempt to replicate corresponding anatomical functions is desirable (Hansen et al., 2004a,b, 2007, 2010). We previously demonstrated that prosthetic ankle joints improve walking performance in persons with transtibial (below-knee) amputation (Su et al., 2008, 2009, 2010). In that study, research subjects clearly preferred walking with the prosthetic ankle components, but several indicated that they felt unstable during standing (Su et al., 2010). Subsequent analyses of those data indicated that the addition of a compliant prosthetic ankle unit significantly reduced the radius of the ankle-foot roll-over shape (Gard et al., 2011), which can adversely affect standing stability and gait performance (Gard & Childress, 2001; Klodd et al., 2010a,b). The purpose of this investigation is to determine how systematically varying the prosthetic foot keel stiffness and prosthetic ankle joint stiffness affects standing and walking in persons with unilateral, transtibial amputations. The specific aims for this study are: 1. To determine how different combinations of prosthetic foot and ankle stiffness affect gait biomechanics of unilateral, transtibial prosthesis users. Kinematic, kinetic and energy expenditure data will be collected as subjects walk at different speeds and with different combinations of prosthetic foot and ankle stiffness. 2. To determine how different combinations of prosthetic foot and ankle stiffness affect standing stability of unilateral, transtibial prostheis users. Standing balance of subjects will be evaluated using a series of tests that measure balance and recovery stability as balance is perturbed. Subjects will also be administered questionnaires to document their perceptions of comfort, exertion and stability while using the different prosthetic foot-ankle configurations. Compliant foot-ankle mechanisms that allow for a normal range of ankle joint motion during walking are expected to increase gait performance, but decrease standing stability. Conversely, a rigid foot-ankle combination will likely maximize standing stability, but decrease gait performance. Determination of an optimal prosthetic foot and ankle stiffness combination will require a compromise between the apparent disparate objectives for these two activities. Increased understanding about how different prosthetic foot-ankle stiffness combinations affect standing and walking abilities will facilitate appropriate component selection by prosthetists, encourage development of prosthetic foot-ankle mechanisms with adaptable stiffness, and ultimately improve quality of life for prosthesis users.


项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

Steven A. Gard其他文献

Rehabilitation Is a Global Health Priority
  • DOI:
    10.1186/s12913-020-4962-8
  • 发表时间:
    2020-02-26
  • 期刊:
  • 影响因子:
    3.000
  • 作者:
    Allen W. Heinemann;Michael Feuerstein;Walter R. Frontera;Steven A. Gard;Leonard A. Kaminsky;Stefano Negrini;Lorie Gage Richards;Catherine Vallée
  • 通讯作者:
    Catherine Vallée

Steven A. Gard的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('Steven A. Gard', 18)}}的其他基金

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
  • 财政年份:
    2022
  • 资助金额:
    --
  • 项目类别:
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:
    10731063
  • 财政年份:
    2022
  • 资助金额:
    --
  • 项目类别:
Design of a Smart Prosthetic Liner Controlled by Muscle Activation Feedback
肌肉激活反馈控制的智能假肢衬垫设计
  • 批准号:
    9333115
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
Optimization of Prosthetic Foot and Ankle Stiffness for Standing and Walking
站立和行走时假足和踝关节刚度的优化
  • 批准号:
    9084927
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
Optimization of Prosthetic Foot and Ankle Stiffness for Standing and Walking
站立和行走时假足和踝关节刚度的优化
  • 批准号:
    10261529
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
Design of a Smart Prosthetic Liner Controlled by Muscle Activation Feedback
肌肉激活反馈控制的智能假肢衬垫设计
  • 批准号:
    9143249
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
Effect of prosthesis stiffness on impact force during in vivo step loads and gait
假体刚度对体内步态负载和步态冲击力的影响
  • 批准号:
    9030953
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
Fall risk and prosthetic influence on gait biomechanics in upper limb amputees
跌倒风险和假肢对上肢截肢者步态生物力学的影响
  • 批准号:
    9000586
  • 财政年份:
    2014
  • 资助金额:
    --
  • 项目类别:
A Quantitative Analysis of Transfemoral Prosthetic Alignment
经股假肢对准的定量分析
  • 批准号:
    8856548
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
A Quantitative Analysis of Transfemoral Prosthetic Alignment
经股假肢对准的定量分析
  • 批准号:
    8466754
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:

相似海外基金

Understanding the Heightened Amputation Risk Among People Experiencing Homelessness: A Population-based Cohort Study
了解无家可归者截肢风险升高:一项基于人群的队列研究
  • 批准号:
    480010
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
    Operating Grants
Collaborative Research: An Integrated, Proactive, and Ubiquitous Prosthetic Care Robot for People with Lower Limb Amputation: Sensing, Device Designing, and Control
合作研究:针对下肢截肢患者的集成、主动、无处不在的假肢护理机器人:传感、设备设计和控制
  • 批准号:
    2246672
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Collaborative Research: An Integrated, Proactive, and Ubiquitous Prosthetic Care Robot for People with Lower Limb Amputation: Sensing, Device Designing, and Control
合作研究:针对下肢截肢患者的集成、主动、无处不在的假肢护理机器人:传感、设备设计和控制
  • 批准号:
    2246671
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Advancing measurement of physical function in upper limb amputation
推进上肢截肢身体功能的测量
  • 批准号:
    10749083
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
Collaborative Research: An Integrated, Proactive, and Ubiquitous Prosthetic Care Robot for People with Lower Limb Amputation: Sensing, Device Designing, and Control
合作研究:针对下肢截肢患者的集成、主动、无处不在的假肢护理机器人:传感、设备设计和控制
  • 批准号:
    2246673
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Establishing the Relationship Between Muscle Quality and Joint Loading for Individuals with Transtibial Amputation
建立小腿截肢患者的肌肉质量和关节负荷之间的关系
  • 批准号:
    10677236
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
Preventing Amputation through Management of Diabetic Foot; Working with Industry to generate supply chains in an LMIC setting (Uganda) for low-cost fo
通过糖尿病足管理预防截肢;
  • 批准号:
    2883969
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
    Studentship
Diabetes Lower Extremity Complications Research and Training Network in Foot Ulcer and Amputation Prevention (DIALECT)
糖尿病下肢并发症足部溃疡和截肢预防研究与培训网络 (DIALECT)
  • 批准号:
    EP/X02699X/1
  • 财政年份:
    2022
  • 资助金额:
    --
  • 项目类别:
    Research Grant
Myoelectric upper limb prosthesis with multiple degrees of freedom using targeted muscle reinnervation surgery for traumatic amputation
多自由度肌电上肢假肢,采用靶向肌肉神经支配手术治疗创伤性截肢
  • 批准号:
    22K16723
  • 财政年份:
    2022
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Early-Career Scientists
An automatically-adjusting prosthetic socket for people with transtibial amputation
适用于小腿截肢患者的自动调节假肢接受腔
  • 批准号:
    10364108
  • 财政年份:
    2022
  • 资助金额:
    --
  • 项目类别:
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了