Reliability of a Wearable Motion System for Clinical Evaluation of Dynamic Lumbar Spine Function.
Reliability of a Wearable Motion System for Clinical Evaluation of Dynamic Lumbar Spine Function.
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DOI：
10.31031/acam.2022.07.000660
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Marras W
中科院分区：
文献类型：
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作者：
Hani H;Souchereau R;Kachlan A;Harris H;Dufour J;Aurand A;Mageswaran P;Hyer M;Marras W
下背痛是全球残疾的主要原因。主观评估通常用于评估功能限制和治疗反应的程度。然而，这些措施的敏感性差，并受到患者对其状况的感知的影响。目前，还没有客观的工具来有效地评估个人的功能残疾的程度，并告知临床决策。本研究旨在评估基于惯性测量单元（IMU）传感器的可穿戴运动系统用于量化下背部功能的可靠性。下背部运动评估由3名新手评分员使用基于IMU的运动系统对20名参与者进行。这些评估在3天内进行，测试之间休息2天。从所有三个解剖平面的下背部运动评估中提取了总共37个运动学参数。使用重复测量混合效应回归模型计算的组内相关系数（ICC）评估评估者内和评估者间可靠性。腰椎特定运动学参数在所有运动学参数中显示出中等至极好的可靠性。评价者内可靠性的ICC值范围为0.84-0.93，评价者间可靠性的ICC值范围为0.66 - 0.83。特别是，速度的措施表现出更高的可靠性比其他运动学变量。基于IMU的可穿戴运动系统是客观评估下背部功能的有效和可靠的工具。这项研究表明，腰椎特定的运动学指标有可能提供良好的，可重复的指标，以评估临床功能随着时间的推移。
Low back pain is the leading cause of disability worldwide. Subjective assessments are often used to assess extent of functional limitations and treatment response. However, these measures have poor sensitivity and are influenced by the patient’s perception of their condition. Currently, there are no objective tools to effectively assess the extent of an individual’s functional disability and inform clinical decision-making. The purpose of this study was to evaluate the reliability of a wearable motion system based on Inertial Measurement Unit (IMU) sensors for use in quantifying low back function. Low back motion assessments were conducted by 3 novice raters on 20 participants using an IMU-based motion system. These assessments were conducted over 3 days with 2 days of rest in between tests. A total of 37 kinematic parameters were extracted from the low back motion assessment in all three anatomical planes. Intra-rater and inter-rater reliability were assessed using Intraclass Correlation Coefficients (ICCs) calculated from repeated measures, mixed-effects regression models. Lumbar spine-specific kinematic parameters showed moderate to excellent reliability across all kinematic parameters. The ICC values ranged between 0.84–0.93 for intra-rater reliability and 0.66 – 0.83 for inter-rater reliability. In particular, velocity measures showed higher reliabilities than other kinematic variables. The IMU-based wearable motion system is a valid and reliable tool to objectively assess low back function. This study demonstrated that lumbar spine-specific kinematic metrics have the potential to provide good, repeatable metrics to assess clinical function over time.