Kleiner Ana Francisca Rozin, Pacifici Ilaria, Vagnini Alessandro, Camerota Filippo, Celletti Claudia, Stocchi Fabrizio, De Pandis Maria Francesca, Galli Manuela
Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy.
Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy; Department of Biomedical Sciences for Health, Università Degli Studi di Milano, Milan, Italy.
J Bodyw Mov Ther. 2018 Apr;22(2):390-395. doi: 10.1016/j.jbmt.2017.07.006. Epub 2017 Jul 25.
The Timed Up and Go test (TUG) is used to assess individual mobility. It evaluates static and dynamic balance by means of the total time required to complete the test, usually measured by a stopwatch. In recent years tools based on portable inertial measurement units (IMU) for clinical application are increasingly available on the market. More specifically, a tool (hardware and dedicated software) to quantify the TUG test based on IMU is now available. However, it has not yet been validated in subjects with Parkinson's disease (PD). Thus, the aim of this study is to compare measurements from instrumented TUG tests (or iTUG) acquired by an IMU with those obtained using an optoelectronic system (the gold standard) and by a stopwatch, to gain an in-depth understanding of IMU behavior in computing iTUG in subjects with PD. To do this, three TUG test trials were carried out on 30 subjects with PD and measured with all three systems simultaneously. System agreements were evaluated using Intraclass Correlation Coefficient and Bland-Altman plots. The device tested showed excellent reliability, accuracy and precision in quantifying total TUG test duration. Since TUG is a widely used test in rehabilitation settings, its automatic quantification through IMUs could potentially improve the quality of assessments in the quantification of PD gait ability.
定时起立行走测试（TUG）用于评估个体的活动能力。它通过完成测试所需的总时间来评估静态和动态平衡，通常用秒表测量。近年来，基于便携式惯性测量单元（IMU）的临床应用工具在市场上越来越多。更具体地说，现在有一种基于IMU来量化TUG测试的工具（硬件和专用软件）。然而，它尚未在帕金森病（PD）患者中得到验证。因此，本研究的目的是比较由IMU获得的仪器化TUG测试（或iTUG）测量结果与使用光电系统（金标准）和秒表获得的测量结果，以深入了解IMU在计算PD患者iTUG时的表现。为此，对30名PD患者进行了三次TUG测试试验，并同时使用这三种系统进行测量。使用组内相关系数和布兰德-奥特曼图评估系统一致性。测试的设备在量化TUG测试总持续时间方面显示出出色的可靠性、准确性和精度。由于TUG是康复环境中广泛使用的测试，通过IMU对其进行自动量化可能会提高PD步态能力量化评估的质量。
