Design and evaluation of a low-cost instrumented glove for hand function assessment.
Design and evaluation of a low-cost instrumented glove for hand function assessment.
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DOI：
10.1186/1743-0003-9-2
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发表时间：
2012-01-17
影响因子：
5.1
通讯作者：
Curt A
中科院分区：
文献类型：
--
作者：
Oess NP;Wanek J;Curt A
评估神经系统疾病（中风和颈脊髓损伤）后的手功能障碍需要灵敏、可靠和有临床意义的评估工具。手部功能的临床性能指标主要关注日常生活活动（ADL）的完成情况，通常是通过总体顺序评级评估的相当复杂的任务;而运动性能（即运动学）则不太详细。本研究的目的是开发一种低成本的仪器手套，以捕捉抓的细节，在临床实践和康复环境中的手功能的评估是可行的。通过测量不同类型传感器阶跃响应的信号漂移，测试其随时间的输出信号稳定性。实现了一种基于预先测量的曲线将传感器输出电压转换为角度的系统。此外，每个传感器信号调理电路的电源电压增加，以提高传感器的分辨率。使用组内相关系数（ICC）建立了三个基于ADL的任务的性能过程中记录的手指弯曲轨迹的可重复性。此外，手套的准确性进行了评估，通过确定与嵌入式传感器测量的角度和传统测角测量的角度之间的协议。此外，手套的可行性进行了测试，在四名患者的病理性手功能造成的颈脊髓损伤（cSCI）。确定了随时间推移显示稳定输出信号的传感器类型，并获得了0.5°的高传感器分辨率。对手套可靠性的评估产生了高ICC值（0.84至0.92），精确度误差约为± 5°。可行性测试表明，手套是敏感的，以区分不同程度的手功能障碍的cSCI患者。该设备满足了低成本、随时间推移稳定的传感器信号、完整的手指屈曲运动跟踪范围以及监测一个手指的所有三个关节的能力等方面的预期系统要求。所开发的快速校准系统易于使用（高可行性）和良好的心理测量特性（即可靠性和有效性），使该设备有资格在临床实践和康复环境中评估手功能。
The evaluation of hand function impairment following a neurological disorder (stroke and cervical spinal cord injury) requires sensitive, reliable and clinically meaningful assessment tools. Clinical performance measures of hand function mainly focus on the accomplishment of activities of daily living (ADL), typically rather complex tasks assessed by a gross ordinal rating; while the motor performance (i.e. kinematics) is less detailed. The goal of this study was to develop a low-cost instrumented glove to capture details in grasping, feasible for the assessment of hand function in clinical practice and rehabilitation settings. Different sensor types were tested for output signal stability over time by measuring the signal drift of their step responses. A system that converted sensor output voltages into angles based on pre-measured curves was implemented. Furthermore, the voltage supply of each sensor signal conditioning circuit was increased to enhance the sensor resolution. The repeatability of finger bending trajectories, recorded during the performance of three ADL-based tasks, was established using the intraclass correlation coefficient (ICC). Moreover, the accuracy of the glove was evaluated by determining the agreement between angles measured with the embedded sensors and angles measured by traditional goniometry. In addition, the feasibility of the glove was tested in four patients with a pathological hand function caused by a cervical spinal cord injury (cSCI). A sensor type that displayed a stable output signal over time was identified, and a high sensor resolution of 0.5° was obtained. The evaluation of the glove's reliability yielded high ICC values (0.84 to 0.92) with an accuracy error of about ± 5°. Feasibility testing revealed that the glove was sensitive to distinguish different levels of hand function impairment in cSCI patients. The device satisfied the desired system requirements in terms of low cost, stable sensor signal over time, full finger-flexion range of motion tracking and capability to monitor all three joints of one finger. The developed rapid calibration system for easy use (high feasibility) and excellent psychometric properties (i.e. reliability and validity) qualify the device for the assessment of hand function in clinical practice and rehabilitation settings.
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DOI：
10.1097/00004356-198112000-00001
发表时间：
1981-01-01
影响因子：
1.7
作者：
LYLE, RC
通讯作者：
LYLE, RC
影响因子：
3
作者：
Gentner, Reinhard;Classen, Joseph
通讯作者：
Classen, Joseph
影响因子：
3
作者：
Simone, Lisa K.;Sundarrajan, Nappinnai;Kamper, Derek G.
通讯作者：
Kamper, Derek G.
DOI：
10.1054/jhsb.1999.0360
发表时间：
2000-04-01
期刊：
JOURNAL OF HAND SURGERY-BRITISH AND EUROPEAN VOLUME
影响因子：
--
作者：
Williams, NW;Penrose, JMT;Harley, P
通讯作者：
Harley, P
DOI：
10.1682/jrrd.1990.10.0411
发表时间：
1990-01-01
影响因子：
--
作者：
WISE S;GARDNER W;ROSEN J M
通讯作者：
ROSEN J M