Torsional stiffness and user preference: lower limb amputee lab test

扭转刚度和用户偏好：下肢截肢者实验室测试

• 批准号: 9033047
• 负责人: Glenn Klute
• 金额: --
• 依托单位: VA PUGET SOUND HEALTHCARE SYSTEM
• 依托单位国家: 美国
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/9033047
• 关键词: Address; Adoption; Aging; American; Amputees; Articular Range of Motion; Behavior; Biomechanics; Clinic; Clinical; Clinical Trials; Conflict (Psychology); Crowding; Data; Development; Devices; Diabetes Mellitus; Equilibrium; Etiology; Exhibits; Fall injury; Feedback; Freedom; Future; Gait; Glare; Goals; Growth; Height; Home environment; Housing; Human; Incidence; Individual; Laboratories; Life; Limb Prosthesis; Limb structure; Literature; Lower Extremity; Mechanics; Metabolic; Middle East; Motion; Motor; National Research Council; One-Step dentin bonding system; Operative Surgical Procedures; Overweight; Patients; Performance; Play; Population; Process; Property; Prosthesis; Quality of life; Reporting; Research; Research Support; Role; Sampling; Scientist; Skin; Soft Tissue Injuries; Source; Speed; Surgeon; System; Technology; Testing; Toes; Torque; Torsion; United States; Veterans; Violence; Walking; War; Weight; World War II; abstracting; arm; clinically relevant; clinically significant; cooking; cost; design; disability; falls; human subject; improved; improved functioning; improved mobility; innovation; limb amputation; meetings; new technology; novel; preference; public health relevance; research study; residual limb; sensor; walking speed

 DESCRIPTION (provided by applicant): Project Summary (Public Abstract) The violent conflict of war always results in amputees. After World War II, a team of well-known clinician scientists led by H. D. Eberhart examined the biomechanics of human gait and reported to the National Research Council Committee on Artificial Limbs, advisory to the Veterans Affairs and the Office of the Surgeon General of the United States Army, that transverse plane motions and their frictional effects "are a major source of discomfort and the chief cause of dissolution of the skin" in lower limb amputees. This was quite remarkable given the state-of-the-art of prosthetic limbs in 1947. Identifying a problem is one thing, solving it is another. Thirty years went by before Lamoureux and Radcliffe reported in 1977 that a greater degree of freedom in the transverse plane of the prosthesis might improve the changing of direction of ambulatory amputees. As our own research suggests that turning maneuvers comprise about 30% of daily steps, it is not too surprising that evidence in the literature reports the benefits of commercially-available torsion adapters to include improved walking performance, reduced metabolic costs, the potential to reduce residual limb soft tissue injuries, and improved balance and stability. While these devices are available for prescription, a glaring problem remains. None of the commercially-available transverse plane torsion adapters can be adjusted by the user. When patients are fit with these devices, the prosthetist sets the stiffness and that is it. The selected stiffness is expected to be adequate for all of an amputee's activities. To address this deficiency, we developed a novel prosthesis whose transverse plane stiffness can be adjusted by the user. The specific aims of the proposed research are to determine: (1) the preferred transverse plane stiffness and (2) the transverse plane stiffness that minimizes the transverse plane moment applied to the residual limb of Veteran lower limb amputees during different ambulatory activities at different speeds. We believe this research will significantly improve the function and quality of life of Veteran lower limb amputees. Developing new technology that allows the prosthetic limbs of Veteran amputees perform like a natural limb is where the VA should be: at the forefront of prosthetic technology and prescription practice.

 描述（由申请人提供）： 项目摘要（公共摘要）战争冲突总是会导致截肢者。第二次世界大战后，由H. D. Eberhart领导的一支知名临床科学家研究了人类步态的生物力学，并向国家研究委员会人工肢体委员会报告，对退伍军人事务的咨询和美国军队外科医生办公室的咨询，这些横向飞机及其摩擦效应及其摩擦效应“是不舒服的原因和较低的障碍，是较低的障碍和分解的主要原因。鉴于1947年的假肢最新，这是非常了不起的。确定问题是一件事，解决它是另一回事。在Lamoureux和Radcliffe在1977年报道说，假体横平的更大自由度可能会改善卧床截肢者方向的改变，这三十年了。正如我们自己的研究表明，转动动作约占每日步骤的30％，文献中的证据报告说，商业上可用的扭转适配器的好处包括提高步行性能，降低代谢成本，减少残留的肢体软组织伤害以及改善的平衡和稳定的可能性。这些设备可供处方 仍然存在明显的问题。用户无法调整一个商业上可用的横平扭转适配器。当患者适合这些设备时，假肢会设定刚度，仅此而已。预计所选的刚度足以适合所有截肢者 活动。为了解决这种缺陷，我们开发了一种新颖的假体，其横向平面刚度可以由用户调整。拟议研究的具体目的是确定：（1）优选的横向平面刚度和（2）横平的刚度 最小化在不同速度的不同卧床活动中，在不同的门诊活动中，施加到退伍军人下肢截肢的残留肢的横向平面矩。我们认为，这项研究将大大改善资深下肢截肢者的生活功能和生活质量。开发允许老兵安排的假肢的新技术像自然的肢体一样，是VA应该是：在假肢技术和处方实践的最前沿。