Karduna A R, McClure P W, Michener L A, Sennett B
Department of Rehabilitation Sciences, MCP Hahnemann University, Philadelphia, PA 19102, USA.
J Biomech Eng. 2001 Apr;123(2):184-90. doi: 10.1115/1.1351892.
The validation of two noninvasive methods for measuring the dynamic three-dimensional kinematics of the human scapula with a magnetic tracking device is presented. One method consists of simply fixing a sensor directly to the acromion and the other consists of mounting a sensor to an adjustable plastic jig that fits over the scapular spine and acromion. The concurrent validity of both methods was assessed separately by comparison with data collected simultaneously from an invasive approach in which pins were drilled directly into the scapula. The differences between bone and skin based measurements represents an estimation of skin motion artifact. The average motion pattern of each surface method was similar to that measured by the invasive technique, especially below 120 degrees of elevation. These results indicate that with careful consideration, both methods may offer reasonably accurate representations of scapular motion that may be used to study shoulder pathologies and help develop computational models.
本文介绍了两种使用磁跟踪设备测量人体肩胛骨动态三维运动学的非侵入性方法的验证。一种方法是将传感器直接固定在肩峰上，另一种方法是将传感器安装在一个可调节的塑料夹具上，该夹具可套在肩胛冈和肩峰上。通过与从侵入性方法（直接将针钻入肩胛骨）同时收集的数据进行比较，分别评估了这两种方法的同时效度。基于骨骼和皮肤测量之间的差异代表了皮肤运动伪影的估计。每种表面方法的平均运动模式与侵入性技术测量的相似，尤其是在抬高120度以下时。这些结果表明，经过仔细考虑，这两种方法都可以提供肩胛骨运动的合理准确表示，可用于研究肩部疾病并帮助开发计算模型。
