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连接 光学靶向皮肤表面。数据来源于监测 当患者行走时这些目标的位置提供了基础， 客观的人体运动研究。在评估这些数据时，假设 目标位置指示骨架位置通常被忽略。的 本研究的目的是评估误差的大小产生的 使用皮肤安装目标跟踪骨骼系统。迄今为止， 的四个科目已测试使用表面和 固定在柄上的骨安装靶。结果表明 运动学误差主要发生在围绕和沿着长轴的 小腿考虑到以下因素，对这些误差进行建模似乎不可行： 仅考虑软组织的被动运动。 与标准步态分析程序相关的错误是一个重要的 测试验证过程的组成部分。这项研究的结果将 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 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.