Characteristic Changes of Sway of Center of Gravity with Advancing Age
Characteristic Changes of Sway of Center of Gravity with Advancing Age
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重心摆动随年龄增长的特征变化
DOI：
10.18999/envm.47.85
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
K. Mihashi
中科院分区：
文献类型：
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作者：
H. Takada;Y. Kitaoka;S. Iwase;Y. Shimizu;Tomoyuki Watanabe;M. Nakayama;M. Miyao;K. Mihashi
随着年龄的增长，避免摔倒的翻正反射也会发生变化。本研究的目的是找到一个良好的指标来表示翻正反射是如何随着年龄的增长而加剧的。我们对年龄为51岁的健康成人(9岁和11岁，青年组)和≥51岁(22岁和8岁，老年组)的站立受试者进行了稳定度测量。稳定度测量要求受试者站在稳定器上，眼睛盯着屏幕(1min)，闭上眼睛(接下来1min)。用8项指标对稳定度分析得到的状态运动图进行分析。在“睁眼”状态下，随着年龄的增长，平衡功能的下降并未发现先前各项指标的显著变化。我们提出的指数，即链I上的局部作用力总和，被认为是最稳健和最合适的统计动图指数，用于“睁眼/闭眼”状态。这一指标被应用于模拟老年人(假老年研究)；受试者为19-29岁(男性和女性)的健康成年人，在稳定测量中佩戴眼镜、耳塞和体重等器具。统计动图的这些指标表明，假老年组最稳定，老年组最不稳定。
The righting reflex to avoid falls is altered with advancing age. The purpose of the present study is to find a good index for representing how the righting reflex is exacerbated with advancing age. We carried out stabilometry for standing subjects who were healthy adults with age <51 (9M & 11F, younger group) and ≥51 (22M & 8F, elderly group). The stabilometry required the subjects to stand on a stabilometer with fixing their eyes to the screen (1 min) and their eyes closed (the following 1 min). Statokinesigrams resulting from the stabilometry were analyzed by 8 indices. In the "Eyes opened" state, significant changes in previous indices were not found by a decline in the equilibrial function with advancing age. Our proposed index, a total of local sums of forces on chains I, was regarded as the most robust and appropriate index to statokinesigrams for the "Eyes opened/closed" state. This index was applied to the simulation of the elderly (pseudo-elderly study); the subjects were healthy adults with age of 19-29 (5M & 19F) and wore apparatuses as glasses, earplugs, and weights in the stabilometry. These indices obtained from the statokinesigrams indicated that pseudo-elderly group was the most stable, and the elderly group was the least.