Foot clearance during stair descent: effects of age and illumination
Foot clearance during stair descent: effects of age and illumination
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DOI：
10.1016/j.gaitpost.2004.01.006
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发表时间：
2005-02-01
期刊：
影响因子：
2.4
通讯作者：
Cavanagh, PR
中科院分区：
文献类型：
--
作者：
Hamel, KA;Okita, N;Cavanagh, PR
许多爬楼梯的事故很可能是由于爬楼梯时的绊倒造成的，但很少有研究探讨在楼梯上福尔斯摔倒时失去平衡的确切性质。本研究的目的是调查下楼梯时足部最小间隙的潜在年龄相关差异，并探索最小足部间隙是否受到可用环境照明的影响。12名105岁（24 +/- 3.3岁）的年轻人和10名老年人（73.7 +/- 1.9岁）参加了研究。老年人有显着的geater内的主题变异系数相比，年轻的成年人，并有显着较大的数量下降below 5毫米的最小脚部间隙。而年轻的受试者增加了他们的最小间隙平均3.6毫米，在响应减少环境照明的老年人保持相同的间隙，除了一个在所有的楼梯。这些结果表明，最小足部间隙的可变性。以及在减少的照明下缺乏预防性的增加脚部间隙可能导致老年人在楼梯上跌倒福尔斯。(C)2004 Elsevier B. V.保留所有权利。
It is likely that many stair accidents result from a trip during stair negotiation, yet few studies have examined the exact nature of balance loss during falls on stairs. The purpose of this stud), was to investigate potential age-related differences in the minimum clearance of the foot during stair descent, and to explore whether the minimum foot clearance was affected by the available ambient lighting. Twelve young at:105 (24 +/- 3.3 years) and 10 older adults (73.7 +/- 1.9 years) participated in the study. The older adults had significantly geater within subject coefficients of variation compared to the young adults, and had a significantly larger number of minimum foot clearances which fell bellow 5 mm. While the young subjects increased their minimum clearance by 3.6 mm on average in response to a decrease in ambient lighting the older adults maintained the same clearance over all stairs except one. These results suggest that the variability of minimum foot clearance. and lack of precautionary increases in foot clearance under reduced lighting may contribute to falls on stairs by the elderly. (C) 2004 Elsevier B.V. All rights reserved.