SKELETAL TRACKING WITH SKELETAL FIXATION

通过骨骼固定进行骨骼追踪

• 批准号: 2568372
• 负责人: J P HOLDEN
• 金额: --
• 依托单位: NATIONAL INSTITUTE OF ARTHRITIS AND MUSCULOSKELETAL AND SKIN DISEASES
• 依托单位国家: 美国
• 资助国家: 美国
• 起止时间: 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/2568372
• 关键词: biomechanics; biomedical equipment development; body movement; clinical research; diagnosis quality /standard; ergonomics; femur; gait; human subject; knee; leg; limb bone; limb movement; patient monitoring device; skin; video recording system

The fundamental measurements in gait analysis consist of joint motion and net joint kinetic estimates. The fact that such measurements are referenced to joints implies knowledge of the positions of the skeleton. Data on skeletal position are typically obtained by measuring the locations of targets attached to the surface of the body. Errors in these data are introduced by the movement of the targets relative to the skeleton, due to the combined effect of the target attachment technique and displacements of the skin surface relative to the bone. The magnitude and pattern of these "surface movement errors" in standard gait data remain unknown, due to difficulties in measuring the true skeletal motion. Available data suggest that surface movement errors may be of considerable magnitude. The purpose of this project is to investigate the magnitudes and patterns of the surface movement errors during walking. A principle objective necessary to achieve this goal was to develop and demonstrate a minimally invasive technique for making the measurements.

步态分析的基本测量包括关节运动和 净关节动力学估计。 事实上，这样的测量是 提及关节意味着了解骨骼的位置。 骨骼位置的数据通常通过测量 附着在身体表面的目标位置。 这些错误 数据是通过目标相对于目标的移动引入的 骨架，由于目标附着技术的综合作用 以及皮肤表面相对于骨骼的位移。 震级 标准步态数据中这些“表面运动错误”的模式 由于测量真实骨骼运动的困难，仍然未知。 现有数据表明，表面移动误差可能相当大 震级。 该项目的目的是调查其规模 以及行走过程中表面运动误差的模式。 一个原则 实现这一目标的必要目标是开发并展示 用于进行测量的微创技术。