Department of Physical Therapy, Federal University of São Carlos, Washington Luís Rod. Km 235, 13565-905, Brazil.
Med Eng Phys. 2013 Nov;35(11):1629-37. doi: 10.1016/j.medengphy.2013.05.014. Epub 2013 Jun 24.
This study compared neck range of movement recording using three different methods goniometers (EGM), inclinometers (INC) and a three-dimensional video analysis system (IMG) in simultaneous and synchronized data collection. Twelve females performed neck flexion-extension, lateral flexion, rotation and circumduction. The differences between EGM, INC, and IMG were calculated sample by sample. For flexion-extension movement, IMG underestimated the amplitude by 13%; moreover, EGM showed a crosstalk of about 20% for lateral flexion and rotation axes. In lateral flexion movement, all systems showed similar amplitude and the inter-system differences were moderate (4-7%). For rotation movement, EGM showed a high crosstalk (13%) for flexion-extension axis. During the circumduction movement, IMG underestimated the amplitude of flexion-extension movements by about 11%, and the inter-system differences were high (about 17%) except for INC-IMG regarding lateral flexion (7%) and EGM-INC regarding flexion-extension (10%). For application in workplace, INC presents good results compared to IMG and EGM though INC cannot record rotation. EGM should be improved in order to reduce its crosstalk errors and allow recording of the full neck range of movement. Due to non-optimal positioning of the cameras for recording flexion-extension, IMG underestimated the amplitude of these movements.
本研究比较了三种不同方法（测角计、倾角计和三维视频分析系统）在同步和同步数据采集时记录颈部活动范围的差异。12 名女性进行了颈部屈伸、侧屈、旋转和环转运动。逐个样本计算 EGM、INC 和 IMG 之间的差异。在屈伸运动中，IMG 低估了 13%的幅度；此外，EGM 对于侧屈和旋转轴显示约 20%的串扰。在侧屈运动中，所有系统显示出相似的幅度，系统间差异适中（4-7%）。对于旋转运动，EGM 对于屈伸轴显示出较高的串扰（13%）。在环转运动中，IMG 低估了屈伸运动幅度约 11%，系统间差异较大（约 17%），除了 INC-IMG 关于侧屈（7%）和 EGM-INC 关于屈伸（10%）。对于在工作场所的应用，INC 比 IMG 和 EGM 具有更好的结果，尽管 INC 不能记录旋转。EGM 应加以改进，以减少其串扰误差并允许记录完整的颈部活动范围。由于用于记录屈伸的相机的定位不理想，IMG 低估了这些运动的幅度。
