Abstract

To evaluate age and fall-risk related changes in balance ability from measures of bipedal quiet stance, this study aims to investigate the characteristics of ‘return to central’ - Centre of Pressure (COP) trajectories. COP trajectories were extracted from 60-second COP recordings in bipedal stance. In anterior posterior direction, age was associated with a greater number of detected trajectories, increased velocity and more stringent control. No differences related to fall risk were established or to age or fall risk in mediolateral direction. The characteristics ‘return to central’ COP trajectories provided insight into the working of the postural control system and can be further developed for application if testing balance under challenging conditions is too risky.

摘要

为了通过双足安静姿势的测量来评估年龄和跌倒风险相关的平衡能力变化，本研究旨在调查“返回中心”的特征 - 压力中心 (COP) 轨迹。COP 轨迹是从双足站立的 60 秒 COP 记录中提取的。在前后方向上，年龄与更多检测到的轨迹、增加的速度和更严格的控制有关。没有确定与跌倒风险或中外侧方向的年龄或跌倒风险相关的差异。“返回中心” COP 轨迹的特征提供了对姿势控制系统工作的深入了解，如果在具有挑战性的条件下测试平衡风险太大，则可以进一步开发以供应用。