SKELETAL TRACKING WITH SKELETAL FIXATION

在临床环境中使用步态分析已经成为 广泛传播。 评估患者的行走模式 需要将光学目标附着到皮肤的 面 从监测地点获得的数据 患者行走时的这些目标提供了基础， 客观的人体运动研究。 在评估这些 数据，假设目标位置指示 骨骼位置通常被忽略。 的目的 本研究旨在评估产生的误差大小 通过使用皮肤安装的目标跟踪骨骼系统。 到目前为止，三个受试者的步态已经使用 表面和骨安装的目标固定到柄。 的 结果表明，运动误差主要发生在 绕小腿的长轴并沿着。 它确实 考虑到这些错误， 仅考虑软组织的被动运动。 量化与标准步态相关的误差 分析程序是测试的重要组成部分 验证过程。 这项研究的结果将有一个 对临床步态分析的未来产生重大影响。

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 three 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 tissue. 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.