Physiotherapy Department, Health Assessment and Quality of Life Lab, University of Thessaly, Lamia, Greece.
Department of Rehabilitation Sciences and Physiotherapy, University of Antwerp, Wilrijk, Belgium.
Expert Rev Med Devices. 2021 Oct;18(10):1029-1037. doi: 10.1080/17434440.2021.1971971. Epub 2021 Sep 1.
Cervical range of motion (CROM) is one of the first things evaluated in cervical disorders. DyCare-Lynx is an inertial measurement unit device that was recently designed to measure CROM. Therefore, the objectives of the present study were to test the reliability and validity of the DyCare-Lynx device for active CROM.
This study included 36 healthy individuals for the reliability study and 31 individuals for the validity study. Test-retest reliability was examined in three different days, by the same examiner with a 4 ± 1-day interval between them in all cervical movements in random order. For validity, the CROM was tested with the Zebris Motion Analysis system and DyCare-Lynx simultaneously.
The interclass correlation coefficient (ICC) of the DyCare-Lynx ranged from 0.54 to 0.90. The standard error of measurement (SEM) ranged from 2.12°-7.65°. The smallest detectable change (SDD) ranged from 11.25% to 29.75%. The Pearson's r correlation of DyCare-Lynx with Zebris ranged from 0.655 to 0.957.
DyCare-Lynx showed moderate to excellent reliability and moderate-to-high validity. Moreover, SEM was low with acceptable SDD values for all movements. Overall, it can be suggested that DyCare-Lynx is a reliable and valid tool to evaluate active CROM.
颈椎活动度(CROM)是颈椎疾病评估的首要内容之一。DyCare-Lynx 是一种最近设计用于测量 CROM 的惯性测量单元设备。因此,本研究的目的是测试 DyCare-Lynx 设备在主动 CROM 方面的可靠性和有效性。
本研究包括 36 名健康个体进行可靠性研究,31 名个体进行有效性研究。在所有颈椎运动中,通过相同的检查者在 3 个不同的日子里以 4±1 天的间隔随机进行测试-再测试可靠性。对于有效性,同时使用 Zebris 运动分析系统和 DyCare-Lynx 测试 CROM。
DyCare-Lynx 的组内相关系数(ICC)范围为 0.54 至 0.90。测量误差(SEM)范围为 2.12°-7.65°。最小可检测变化(SDD)范围为 11.25%-29.75%。DyCare-Lynx 与 Zebris 的 Pearson r 相关系数范围为 0.655 至 0.957。
DyCare-Lynx 表现出中等至极好的可靠性和中等至高的有效性。此外,所有运动的 SEM 均较低,可接受的 SDD 值。总体而言,可以认为 DyCare-Lynx 是一种可靠且有效的主动 CROM 评估工具。