在脊柱三维运动试验机上测试不同状态的三维六个方向上的运动范围。
The range of motion(ROM) on six directions under different conditions was tested by spinal three dimensional analysis system.
本研究分两部分，第一部分以计算机立体视觉为模型建立脊柱三维运动测量系统。
In the first part, a measuring system of three-dimensional motions of spine was established with computer stereovision model.
目的：采用脊柱三维运动分析系统对胸腰段部分椎板切除术和多节段椎板切除术的生物力学特性。
Objective:To study the biomechanics on the partial removal of thoracolumbar lamina and removal of multi-vertebral lumbosacral with three-dimensional exercise analysis system. Methods;
方法：新鲜羊腰椎标本6例(L1 ~5)，置于脊柱三维运动实验机上进行六个自由度的运动。
Methods: 6 flesh lumbar vertebrae (L1 ~ L5) of sheep were harvested, and were placed on the 3-d spine motion test machine to get the motion of 6 freedom degrees.
研究设计：动态三维生物力学方法测试幼年和成年羊的脊柱运动节段。
Study Design. Dynamic triaxial biomechanical testing of immature and mature ovine spine motion segments.
目的：研究单节段脊柱后部结构对腰椎三维运动稳定性的影响。
Objective To study of the effect of monolength posterior structure on stability of lumbar spine 3D movement.
方法：根据脊柱3轴6自由度运动原理，制作活体颈椎三维运动和刚度测试装置。
Methods a device that measures the three-dimensional motion and stiffness of the cervical spine in vivo was designed according to 3-dimensional 6-degree of freedom motion principle of spine.
方法：根据脊柱3轴6自由度运动原理，制作活体颈椎三维运动和刚度测试装置。
Methods a device that measures the three-dimensional motion and stiffness of the cervical spine in vivo was designed according to 3-dimensional 6-degree of freedom motion principle of spine.
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