Department of Human Physiology, University of Oregon, Eugene, OR 97403-1240, USA.
Gait Posture. 2010 Mar;31(3):391-3. doi: 10.1016/j.gaitpost.2009.11.010. Epub 2009 Dec 11.
This study examined the effectiveness of using the center of mass (COM)-Ankle inclination angles to identify elderly individuals with gait imbalance. Whole body motions of 12 elderly patients with gait imbalance and 12 healthy elderly controls were captured with an 8-camera motion analysis system. Inclination angles between the line formed between the COM and lateral ankle marker or by the COM and center of pressure (COP) and their respective vertical lines were computed for each frame during the single stance phase of gait. Similar to the results for COM-COP angles, the results showed that COM-Ankle inclination angles during the single stance phase could successfully distinguish elderly individuals with gait imbalance from healthy elderly adults. Examination of the COM-Ankle inclination angles could be an alternative assessment to clinical populations who possess inconsistent gait that hinder the calculation of the COM-COP inclination angles.
本研究旨在探讨使用质心（COM）-踝关节倾斜角度来识别步态失衡的老年人的有效性。使用 8 个摄像机运动分析系统捕捉了 12 名步态失衡的老年患者和 12 名健康老年对照组的全身运动。在步态单支撑相的每一个框架中，计算了 COM 与外踝标记或 COM 与压力中心（COP）之间形成的线及其各自垂直线之间的倾斜角度。与 COM-COP 角度的结果相似，结果表明，步态单支撑相期间的 COM-踝关节倾斜角度可以成功地区分步态失衡的老年人和健康老年人。对 COM-踝关节倾斜角度的检查可以作为一种替代评估方法，用于那些存在妨碍计算 COM-COP 倾斜角度的不一致步态的临床人群。
