Chan Matthew H M, Keung Donald T F, Lui Steve Y T, Cheung Roy T H
Department of Rehabilitation Science, Hong Kong Polytechnic University, Hong Kong.
Hong Kong Physiother J. 2016 Apr 12;35:1-4. doi: 10.1016/j.hkpj.2015.11.001. eCollection 2016 Dec.
To minimize the reaction time and position judgment error using stopwatch-timed measures, we developed a smartphone application to measure performance in the five-time sit-to-stand (FTSTS) and timed up-and-go (TUG) tests.
This study aimed to validate this smartphone application by comparing its measurement with a laboratory-based reference condition.
Thirty-two healthy elderly people were asked to perform the FTSTS and TUG tests in a randomized sequence. During the tests, their performance was concurrently measured by the smartphone application and a force sensor installed in the backrest of a chair. The intraclass correlation coefficient [ICC] and Bland-Altman analysis were used to calculate the measurement consistency and agreement, respectively, between these two methods.
The smartphone application demonstrated excellent measurement consistency with the lab-based reference condition for the FTSTS test [ICC = 0.988] and TUG test [ICC = 0.946]. We observed a positive bias of 0.27 seconds (95% limits of agreement, -1.22 to 1.76 seconds) for the FTSTS test and 0.48 seconds (95% limits of agreement, -1.66 to 2.63 seconds) for the TUG test.
We cross-validated the newly developed smartphone application with the laboratory-based reference condition during the examination of FTSTS and TUG test performance in healthy elderly.
为了使用秒表计时测量来最小化反应时间和位置判断误差，我们开发了一款智能手机应用程序，用于测量五次坐立试验（FTSTS）和计时起立行走试验（TUG）的表现。
本研究旨在通过将该智能手机应用程序的测量结果与基于实验室的参考条件进行比较，来验证该应用程序。
32名健康老年人被要求以随机顺序进行FTSTS和TUG测试。在测试过程中，他们的表现由智能手机应用程序和安装在椅子靠背上的力传感器同时测量。组内相关系数[ICC]和布兰德-奥特曼分析分别用于计算这两种方法之间的测量一致性和一致性。
智能手机应用程序在FTSTS测试[ICC = 0.988]和TUG测试[ICC = 0.946]中与基于实验室的参考条件显示出极好的测量一致性。我们观察到FTSTS测试的正偏差为0.27秒（95%一致性界限，-1.22至1.76秒），TUG测试的正偏差为0.48秒（95%一致性界限，-1.66至2.63秒）。
在对健康老年人的FTSTS和TUG测试表现进行检查期间，我们将新开发的智能手机应用程序与基于实验室的参考条件进行了交叉验证。
