SKELETAL TRACKING WITH SKELETAL FIXATION

步态分析在临床环境中的使用已经变得广泛。 评估患者的行走模式需要依附 皮肤表面的光学靶标。来自监测数据的数据 患者行走时这些靶点的位置提供了基础 目的人体运动研究。在评估这些数据时，假设 目标位置表明骨骼位置通常被忽略。这个 本研究的目的是评估以下因素产生的误差的大小 使用皮肤贴装目标跟踪骨骼系统。到目前为止，步态 四个受试者中的一个已经使用Surface和 固定在小腿上的骨装靶子。结果表明，该系统具有较高的可靠性。 运动学误差主要发生在长轴周围和沿长轴 小腿。考虑到这些错误来建模似乎是不可行的 只考虑软组织的被动运动。量化 与标准步态分析程序相关的错误是一个重要的 测试验证过程的组件。这项研究的结果将 对临床步态分析的未来有重大影响。

The use of gait analysis in clinical settings has become wide spread. Evaluation of a patient's walking pattern requires the attachment of optical targets to the skin's surface. Data derived from monitoring the location of these targets while the patient walks provide the basis for objective human movement studies. In evaluating these data, the assumption that target positions indicate skeletal position is routinely ignored. The purpose of this study is to evaluate the magnitude of error produced by tracking the skeletal system using skin mounted targets. To date, the gait of four subjects has been tested using surface and bone mounted targets affixed to the shank. The results indicate that kinematic errors occur primarily about and along the long axis of the lower leg. It does not appear feasible to model these errors taking into account only the passive motion of soft tissues .Quantification of the errors associated with standard gait analysis procedures is an important component of the test validation process. The results of this study will have a significant impact on the future of clinical gait analysis.