TUG Test Instrumentation for Parkinson's disease patients using Inertial Sensors and Dynamic Time Warping
TUG Test Instrumentation for Parkinson's disease patients using Inertial Sensors and Dynamic Time Warping
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DOI：
10.1515/bmt-2012-4426
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发表时间：
2012-09-01
影响因子：
1.7
通讯作者：
Manoli, Y.
中科院分区：
文献类型：
--
作者：
Adame, M. Reyes;Al-Jawad, A.;Manoli, Y.
TUG （Timed Up and Go）测试是一种广泛用于评估平衡和活动能力的临床工具，例如帕金森病（PD）。这个测试包括一系列的功能活动，即：坐到站，走3米，180度转身，走回去，转身坐。这项工作介绍了一种新的方法来测量TUG测试，使用一个可穿戴惯性传感器单元（dynapport Hybrid, McRoberts b.v.， NL）连接在人的下背部。它建立在动态时间翘曲（DTW）的基础上，用于检测和评估相关状态转换的持续时间。用目视观察和秒表代替人工评估的自动评估旨在获得关于患者的客观信息。该算法在10名健康个体和20名帕金森病患者（疾病早期和晚期各10名患者）的数据上进行了测试。该算法成功地提取了坐姿到站立、转身和转身到坐姿的时间信息。
The Timed Up and Go (TUG) test is a clinical tool widely used to evaluate balance and mobility, e.g. in Parkinson's disease (PD). This test includes a sequence of functional activities, namely: sit-to-stand, 3- meters walk, 180 degrees turning, walk back, and turn-to-sit. The work introduces a new method to instrument the TUG test using a wearable inertial sensor unit (DynaPort Hybrid, McRoberts B.V., NL) attached on the lower back of the person. It builds on Dynamic Time Warping (DTW) for detection and duration assessment of associated state transitions. An automatic assessment to substitute a manual evaluation with visual observation and a stopwatch is aimed at to gain objective information about the patients. The algorithm was tested on data of 10 healthy individuals and 20 patients with Parkinson's disease (10 patients for early and late disease phases respectively). The algorithm successfully extracted the time information of the sit-to-stand, turn and turn-to-sit transitions.