Abstract

This study aimed to determine, among community-dwelling older adults, effects of aging on limits of stability in various directions and total area of functional base of support (FBoS) while standing. Forty-three older adults and 43 young adults maintained limits of stability in eight directions. FBoS was defined as the octagon formed by the corners made by the positions of center of pressure in the eight stability limits. FBoS area was smaller in older adults (36.6% ± 7.6% of base of support) than in young adults (47.2% ± 6.4%). Although the reduction in limits of stability in older adults can occur in all directions, the degree of the reduction varies in a direction-specific manner.

摘要

这项研究旨在确定居住在社区中的老年人中，年龄对站立时各个方向的稳定性极限以及支撑功能基础总面积（FBoS）的影响。43个老年人和43个年轻人保持了八个方向的稳定性极限。FBoS定义为由八个稳定性极限中的压力中心位置所形成的角所形成的八边形。老年人的FBoS面积（支持基础的36.6％±7.6％）小于年轻人（47.2％±6.4％）。尽管老年人的稳定性极限下降可以在各个方向上发生，但是下降的程度以方向特定的方式变化。