Gait Kinematic Parameter Measurement and Analysis System

步态运动参数测量与分析系统

• 批准号: 6992958
• 负责人: AARON B OLOWIN
• 金额: $ 38.71万
• 依托单位: BARRON ASSOCIATES, INC.
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-15 至 2007-07-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6992958
• 关键词: accidental falls; ankle; bioengineering /biomedical engineering; biomechanics; biomedical equipment development; children; clinical research; disease /disorder proneness /risk; gait; human old age (65+); human subject; injury prevention; measurement; portable biomedical equipment; time resolved data; young adult human (21-34)

DESCRIPTION (provided by applicant): An easy to use, low-cost system is needed for measuring and assessing gait kinematic parameters for purposes of screening for fall risk in clinical settings (e.g., physician's offices) and senior-care facilities, as well as for use by researchers. Such a system would also be valuable in various other applications where body segment 6-DOF three-dimensional (3-D) motion tracking is needed. Examples of such applications include outcome evaluation after total knee or hip replacement, external prosthesis adjustment for amputees, monitoring of rehabilitation progress, and gait analysis in patients with neurological diseases. Presently available systems for measuring gait parameters are limited by one or more of the following constraints: (1) small "capture volumes" that severely limit the number of contiguous steps that can be collected without interruption (e.g., turns); (2) collection of temporal gait information only (no spatial parameters); (3) high cost; and/or (4) inconvenience (e.g., need to mount foot switches within shoes or taped to the bottoms of the feet, access to a motion laboratory, etc.). Barren Associates, Inc. (BAI) and its subcontractor, the University of Kansas, propose to develop a wireless six degree-of-freedom (6-DOF) Ankle Inertial Measurement System (AIMS) that can collect and extract generic gait measures and process the gait parameter data to assess a subject's prospective fall risk. The proposed technology will simplify and expand access to accurate gait measurement technology, allowing it to be used in many more applications and on individuals in their natural environments.

描述（由申请人提供）：需要一种易于使用、低成本的系统来测量和评估步态运动学参数，以便在临床环境中筛查跌倒风险（例如，医生办公室）和高级护理设施，以及供研究人员使用。这种系统在需要身体部分6-DOF三维（3-D）运动跟踪的各种其他应用中也是有价值的。此类应用的示例包括全膝关节或髋关节置换术后的结果评估、截肢者的外部假体调整、康复进展监测以及神经系统疾病患者的步态分析。目前可用的用于测量步态参数的系统受到以下约束中的一个或多个的限制：（1）小的“捕获体积”，其严重限制了可以不中断地收集的连续步数（例如，转弯）;（2）仅收集时间步态信息（没有空间参数）;（3）高成本;和/或（4）不便（例如，需要将脚踏开关安装在鞋内或贴在脚底，进入运动实验室等）。Barren Associates，Inc. (BAI)及其分包商堪萨斯大学提出开发无线六自由度（6-DOF）踝关节惯性测量系统（AIMS），其可以收集和提取通用步态测量并处理步态参数数据以评估受试者的预期跌倒风险。这项技术将简化和扩展对精确步态测量技术的访问，使其能够用于更多的应用和自然环境中的个人。