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首页> 美国卫生研究院文献>Diagnostics >Measuring Spinal Mobility Using an Inertial Measurement Unit System: A Reliability Study in Axial Spondyloarthritis
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Measuring Spinal Mobility Using an Inertial Measurement Unit System: A Reliability Study in Axial Spondyloarthritis

机译：使用惯性测量单元系统测量脊柱迁移率：轴向脊椎关节炎的可靠性研究

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The objectives of this study were to evaluate the reliability of wearable inertial motion unit (IMU) sensors in measuring spinal range of motion under supervised and unsupervised conditions in both laboratory and ambulatory settings. A secondary aim of the study was to evaluate the reliability of composite IMU metrology scores (IMU-ASMI (Amb)). Forty people with axSpA participated in this clinical measurement study. Participant spinal mobility was assessed by conventional metrology (Bath Ankylosing Spondylitis Metrology Index, linear version—BASMILin) and by a wireless IMU sensor-based system which measured lumbar flexion-extension, lateral flexion and rotation. Each sensor-based movement test was converted to a normalized index and used to calculate IMU-ASMI (Amb) scores. Test-retest reliability was evaluated using intra-class correlation coefficients (ICC). There was good to excellent agreement for all spinal range of movements (ICC > 0.85) and IMU-ASMI (Amb) scores (ICC > 0.87) across all conditions. Correlations between IMU-ASMI (Amb) scores and conventional metrology were strong (Pearson correlation ≥ 0.85). An IMU sensor-based system is a reliable way of measuring spinal lumbar mobility in axSpA under supervised and unsupervised conditions. While not a replacement for established clinical measures, composite IMU-ASMI (Amb) scores may be reliably used as a proxy measure of spinal mobility.
机译：本研究的目的是评估可穿戴惯性运动单元（IMU）传感器的可靠性，以在实验室和动态环境中测量监督和无监督条件下的脊柱运动范围。该研究的二次目的是评估复合IMU计量分数的可靠性（IMU-ASMI（AMB））。 AXSPA的四十人参与了该临床测量研究。通过常规计量（浴巾脊柱静脉炎计量指数，线性版本 - Basmilin）和基于无线IMU传感器的系统进行评估参与者脊柱迁移率，该系统测量了腰部屈曲 - 延伸，横向屈曲和旋转。将基于传感器的运动测试转换为归一化指数并用于计算IMU-ASMI（AMB）分数。使用类帧内相关系数（ICC）评估测试 - 保持性可靠性。对所有条件的所有脊柱运动（ICC> 0.85）和IMU-ASMI（AMB）分数（ICC> 0.87）均有良好的协议。 IMU-ASMI（AMB）评分与常规计量之间的相关性强（Pearson相关≥0.85）。基于IMU传感器的系统是在监督和无监督的条件下测量AXSPA中脊柱腰部流动性的可靠方式。虽然没有建立临床措施的替​​代品，但可以可靠地使用复合IMU-ASMI（AMB）得分作为脊柱迁移率的代理衡量标准。

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