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背景:足关节运动变化的动力学研究被广泛应用于临床步态分析、工业机器人和制鞋等领域。应用于二维测量技术已经不能准确地反映足的功能变化和标记的三维运动状况。目的:了解足在三维空间中的角度变化规律。设计:实验研究。地点和对象:在德国Erlangen-Nuremberg大学骨科医院三维运动分析实验室完成,选择5例正常人作足三维运动分析,男3例,女2例;年龄30～50岁。方法:应用热塑材料作三维标志的支架,紧贴足背、足跟。通过ALBAV-ISIONACAM50三维运动分析系统定位标志在三维坐标系的位置,计算出足在三维空间中的角度。主要观察指标:足在三维空间的角度及角度曲线。结果:正确描绘了足的三维运动规律。反映了足的内外旋,内外翻,前后转的过程。结论:该测量方法是一个较为完善的三维人体运动临床和科研分析方法。
BACKGROUND: Kinetic studies of foot movement changes are widely used in clinical gait analysis, industrial robotics and shoemaking. Applied to two-dimensional measurement technology can not accurately reflect the foot changes in function and mark the three-dimensional movement status. Objective: To understand the changing rules of the angle in three-dimensional space. Design: Experimental Research. Location and Subjects: Three-dimensional motion analysis was performed at the Orthopedic Hospital of Erlangen-Nuremberg University in Germany. Five normal subjects were selected for 3D motion analysis. There were 3 males and 2 females, aged 30 to 50 years old. Methods: Thermoplastic materials for the three-dimensional signs of the stent, close to the dorsal, heel. Through the ALBAV-ISIONACAM50 three-dimensional motion analysis system positioning marker in the three-dimensional coordinate system position, calculated enough space in the three-dimensional angle. MAIN OUTCOME MEASURES: Foot angle and angle curve in three-dimensional space. Results: The three-dimensional motion of the foot is correctly depicted. Reflects the full internal and external rotation, valgus, before and after the turn of the process. Conclusion: The measurement method is a relatively complete three-dimensional human motion clinical and scientific analysis methods.