Development of the standing balance assessment as fall predictors in elderly ・・・the approach from the anticipatory postural control・・・

通过对健康青年和老年受试者的肌电图、运动学和动力学的测量，研究了单脚站立时重心移动的运动策略（预期姿势控制）。在此基础上，研究了老年人运动策略与运动成绩的关系。结果如下：离脚前重心移动时，老年人躯干向支撑腿倾斜，青年人骨盆向支撑腿倾斜，躯干向支撑腿倾斜角度大的老年人站立平衡能力和运动能力高。研究结果显示，老人已能适应单脚站立的动作策略，即躯干向支撑腿倾斜。不能使用这种运动策略的老年人跌倒的风险可能很高。我们建议，测量工具的发展是必要的，而不是评估的结果，性能作为评估工具，以预测下降，但评估的过程或电机策略的性能。

The Motor strategies (the anticipatory postural controls) by which center of gravity moved when standing with one foot were examined by the measurements of EMG, kinematics, and kinetics in healthy young and elderly subjects. After that, the relation between motor strategy and motor performance in elderly was investigated. The results were as follows: the elderly inclined trunk to the support leg while the young moved the pelvis to the support leg when center of gravity was moved before foot-off, and the standing balance and locomotive abilities were high in elderly with larger angle by which trunk was inclined to the support leg. It was suggested that the elderly have adjusted to stand with one foot by using this motor strategy which inclined trunk to the support leg. The risk of the fall of the elderly who cannot use this motor strategy might be high. We propose that the development of the measurement tools is necessary not to evaluate the result of performance as an assessment tools to predict the fall but to evaluate the process or the motor strategy of performance.