Department of Biofunctional Medicine & Diagnostics, College of Korean Medicine, Kyung Hee University, Seoul 130-702, Republic of Korea.
Evid Based Complement Alternat Med. 2013;2013:570428. doi: 10.1155/2013/570428. Epub 2013 Jul 9.
Objective. The objectives were to show the feasibility of a wireless microelectromechanical system inertial measurement unit (MEMS-IMU) to assess the time-domain characteristics of cervical motion that are clinically useful to evaluate cervical spine movement. Methods. Cervical spine movements were measured in 18 subjects with wireless IMUs. All rotation data are presented in the Euler angle system. Amount of coupling motions was evaluated by calculating the average angle ratio and the maximum angle ratio of the coupling motion to the primary motion. Reliability is presented with intraclass correlation coefficients (ICC). Results. Entire time-domain characteristics of cervical motion were measured with developed MEMS-IMU system. Cervical range of motion (CROM) and coupling motion range were measured with high ICCs. The acquired data and calculated parameters had similar tendency with the previous studies. Conclusions. We evaluated cervical motion with economic system using a wireless IMU of high reliability. We could directly measure the three-dimensional cervical motion in degrees in realtime. The characteristics measured by this system may provide a diagnostic basis for structural or functional dysfunction of cervical spine. This system is also useful to demonstrate the effectiveness of any intervention such as conventional medical treatment, and Korean medical treatment, exercise therapy.
目的。本研究旨在展示无线微机电系统惯性测量单元（MEMS-IMU）评估颈椎运动时域特征的可行性，这些特征对于评估颈椎运动具有临床意义。
方法。使用无线 IMU 对 18 名受试者的颈椎运动进行测量。所有旋转数据均以欧拉角系统呈现。通过计算耦合运动相对于主运动的平均角度比和最大角度比来评估耦合运动的程度。可靠性以组内相关系数（ICC）表示。
结果。该研究开发的 MEMS-IMU 系统可测量颈椎运动的整个时域特征。颈椎活动度（CROM）和耦合运动范围的测量具有较高的 ICC。获得的数据和计算的参数与之前的研究具有相似的趋势。
结论。我们使用具有高可靠性的经济系统的无线 IMU 评估了颈椎运动。我们可以实时直接以度为单位测量三维颈椎运动。该系统测量的特征可能为颈椎结构或功能障碍提供诊断依据。该系统还可用于证明常规医疗、韩医治疗、运动疗法等任何干预措施的有效性。
