Donatell Gabriel J, Meister David W, O'Brien Jeremy R, Thurlow John S, Webster John G, Fellow Life, Salvi Frank J
Department of Biomedical Engineering, University of Wisconsin, Madison, WI 53706, USA.
IEEE Trans Neural Syst Rehabil Eng. 2005 Mar;13(1):18-23. doi: 10.1109/TNSRE.2005.843446.
Monitoring compliance with exercise and motivating patients with lower back pain to perform prescribed exercise regimens are considerable tasks. The objective of this study was to develop and test a low-cost device that can be used by a patient at home to both record and provide real-time biofeedback of lumbar position in the midsagittal and frontal planes during exercises. Our device utilizes strain gages on a thin stainless steel beam to measure lumbar flexion-extension and an optical mouse sensor attached to the end of the blade to measure lateral bending. In comparison tests with a standard electrogoniometer, our device was shown to be accurate within 3 degrees in both the sagittal and frontal planes in healthy subjects. Furthermore, users were capable of reapplying the device themselves and obtaining measurements that were repeatable within 4 degrees in both planes. The capability of this simple device to accurately measure lumbar spine position in a nonlaboratory setting makes it well suited as a tool for providing feedback on exercise performance to both patients and clinicians.
监测运动依从性并激励下背痛患者执行规定的运动方案是相当艰巨的任务。本研究的目的是开发并测试一种低成本设备，患者可在家中使用该设备记录运动过程中腰椎在矢状面和额状面的位置，并提供实时生物反馈。我们的设备在一根薄不锈钢梁上使用应变片来测量腰椎屈伸，在叶片末端连接一个光学鼠标传感器来测量侧屈。在与标准电子测角仪的对比测试中，我们的设备在健康受试者的矢状面和额状面测量中均显示出在3度范围内的准确性。此外，用户能够自行重新安装该设备，并在两个平面上获得可在4度范围内重复的测量结果。这种简单设备在非实验室环境中准确测量腰椎位置的能力使其非常适合作为向患者和临床医生提供运动表现反馈的工具。
