Giansanti Daniele, Maccioni Giovanni, Benvenuti Francesco, Macellari Velio
Dipartimento di Tecnologie e Salute, Istituto Superiore di Sanità, via Regina Elena 299, Roma, Italia.
Med Biol Eng Comput. 2007 Oct;45(10):969-76. doi: 10.1007/s11517-007-0224-8. Epub 2007 Jul 25.
A simple inertial measurement unit (IMU) incorporating rate gyroscopes and accelerometers has been tested to investigate the trunk kinematics during the sit-to-stand. It was affixed at trunk L5 level and used for sit-to-stand position and orientation reconstruction. The method was validated with standard optoelectronic equipment and results were also compared to the ones obtained by means of a Fast Video Camera. Comparative results showed for the IMU better performance than the system based on the Fast Video Camera. During the rising the mean pitch error was always lower than 5.2 x 10(-1) degrees and the mean Euclidean error lower than 5.9 x 10(-3) m in the sagittal plane.
一个包含速率陀螺仪和加速度计的简单惯性测量单元（IMU）已经经过测试，以研究从坐起到站立过程中的躯干运动学。它被固定在躯干L5水平位置，并用于从坐起到站立的位置和方向重建。该方法通过标准光电设备进行了验证，结果还与通过快速摄像机获得的结果进行了比较。比较结果表明，IMU的性能优于基于快速摄像机的系统。在起身过程中，矢状面内的平均俯仰误差始终低于5.2×10⁻¹度，平均欧几里得误差低于5.9×10⁻³米。
