Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland.
Gait Posture. 2010 Mar;31(3):317-21. doi: 10.1016/j.gaitpost.2009.11.013. Epub 2010 Jan 4.
The aim of the present study was to determine whether force plate variables in single- and dual-task situations are able to predict the risk of multiple falls in a community-dwelling elderly population. Two hundred and seventy elderly persons (225 females, 45 males; age, 73+/-7 years) performed balance assessment with and without vision. Seven force plate variables were assessed to predict the risk of multiple falls; maximum displacement in the anteroposterior and medial-lateral directions (Max-AP, Max-ML), mean displacement in the medial-lateral direction (MML), the root mean square amplitude in anteroposterior and medial-lateral directions (RMS-AP, RMS-ML), the average speed of displacement (V), and the area of the 95th percentile ellipse (AoE). Falls were prospectively recorded during the following year. A total of 437 registered falls occurred during monitoring period. The force plate variable RMS-ML in the single-task condition (odds ratio, 21.8) predicted multiple falls together with the following covariables: history of multiple falls (odds ratio, 5.6), use of medications (fall-risk medications or multiple medicine use; odds ratio, 2.3), and gender (odds ratio, 0.34). Multiple fallers had a narrower stance width than non-fallers.
本研究旨在确定在单任务和双任务情况下，力板变量是否能够预测社区居住的老年人群中多次跌倒的风险。270 名老年人（225 名女性，45 名男性；年龄 73+/-7 岁）在有和没有视觉的情况下进行平衡评估。评估了 7 个力板变量以预测多次跌倒的风险；前-后向和内-外向的最大位移（Max-AP、Max-ML）、内-外向的平均位移（MML）、前-后向和内-外向的均方根幅度（RMS-AP、RMS-ML）、平均位移速度（V）和 95%椭圆面积（AoE）。在接下来的一年中对跌倒进行前瞻性记录。在监测期间共发生 437 次跌倒。单任务条件下的力板变量 RMS-ML（比值比，21.8）与以下协变量一起预测多次跌倒：多次跌倒史（比值比，5.6）、使用药物（跌倒风险药物或多种药物使用；比值比，2.3）和性别（比值比，0.34）。多次跌倒者的站立宽度比非跌倒者窄。
