FUNCTIONAL BASE OF SUPPORT DECREASES WITH AGE
FUNCTIONAL BASE OF SUPPORT DECREASES WITH AGE
复制标题
DOI：
10.1093/geronj/49.6.m258
复制
发表时间：
1994-11-01
期刊：
影响因子：
--
通讯作者：
WOLFSON, L
中科院分区：
文献类型：
--
作者：
KING, MB;JUDGE, JO;WOLFSON, L
背景，老年人平衡能力差会增加日常活动中受伤性福尔斯跌倒的风险。功能性支撑基础（FBOS），在最大持续向前和向后倾斜中使用的脚长的前后比例，测试受控的质心运动，这是日常活动中所需的平衡组成部分。本研究的目的是探讨FBOS与年龄的关系，并建立此测量的可靠性。研究对象为113名居住在社区的男性和女性，年龄在20岁至91岁之间。在测力平台上测量的FBOS是持续向前和向后倾斜期间的平均压力中心位置除以脚长之间的差。同时测量前倾（FL）、后倾（BL）、正常站立时（STAND SWAY）和倾斜时（FBOS SWAY）的平均摇摆距离。60岁以下受试者的平均FBOS为0.60 +/-0.07，60岁及以上受试者为0.42 +/-0.12。FBOS在年轻受试者中保持不变;超过60岁，FBOS每十年下降约16%，变化更大。FL和BL也随着年龄的增长而下降，分别占FBOS的66%和34%。STAND SWAY和FBOS SWAY显著相关，但与FBOS无关。结论：FBOS是一种可靠的测量方法，老年人的平均值降低。这种减少与站立或倾斜时的摇摆增加无关。FBOS是一个简单的力量平台测试，有可能作为一个措施的变化，在这个方面的平衡和预测福尔斯风险的老年人。
Background, Poor balance in older persons increases the risk of injurious falls during daily activities. Functional base of support (FBOS), the anterior-posterior proportion of foot length used in maximal sustained forward and backward leaning, tests controlled center of mass movement, a component of balance required in daily activities. The purpose of this study was to examine the relationship between FBOS and age and establish the reliability of this measure.Methods. Subjects were 113 community-dwelling men and women, ages 20 to 91. FBOS, measured on a force platform, is the difference between mean center of pressure location during sustained forward and backward leaning, divided by foot length. Forward lean (FL), backward lean (BL), and average sway distance during normal standing (STAND SWAY) and while leaning (FBOS SWAY) were also measured.Results. Mean FBOS was .60 +/- .07 in subjects under age 60, and .42 +/- .12 in subjects 60 and older. FBOS remained constant in younger subjects; beyond age 60, FBOS declined about 16% per decade and was more variable. FL and BL also declined with age, remaining 66% and 34% of FBOS, respectively. STAND SWAY and FBOS SWAY were significantly correlated with each other, but not with FBOS.Conclusions, FBOS is a reliable measure and is decreased on average in older persons. This decrease is not related to increased sway while standing or leaning. FBOS is a simple force platform test that has potential as a measure of change in this dimension of balance and as a predictor of falls risk in older persons.