Age related effects of transitional floor surfaces and obstruction of view on gait characteristics related to slips and falls
Age related effects of transitional floor surfaces and obstruction of view on gait characteristics related to slips and falls
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DOI：
10.1016/s0169-8141(99)00012-8
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发表时间：
2000-02-01
影响因子：
3.1
通讯作者：
Smith, JL
中科院分区：
文献类型：
--
作者：
Bunterngchit, Y;Lockhart, T;Smith, JL
进行了一项实验室研究，以检查年轻和老年受试者在穿过不同地板时的步态变化。20名受试者(年龄较大和年龄较小的男性和女性各5名)参加了实验。在一半的试验中，受试者携带的轻负荷挡住了他们眼前地板表面的视线。受试者在光滑的(乙烯基肥皂水)和稳定的(室外地毯)地板上行走，并从一个表面过渡到另一个表面。所研究的反应包括：所需摩擦系数(RCOF)、步长(SL)和最小脚趾间隙(MTC)。研究发现，地板表面、负载与非负载条件以及一些涉及年龄的交互作用(年龄较大的受试者与较年轻的受试者)都有显著的影响。在这项实验中，并没有发现所有预期的年龄差异。年轻受试者和年长受试者之间没有显著差异可能是由于参与实验的年长受试者所致。他们是当地医疗中心的志愿者，身体状况良好，很可能不是65岁以上人群的典型。
A laboratory study was conducted to examine gait changes between younger and older subjects as they walked across different floor surfaces. Twenty subjects participated in the experiment (five each of older and younger males and females). For half of the trials, subjects carried light loads that blocked their view of the floor surface immediately in front of them. Subjects walked on slippery (soapy water on vinyl) and stable (outdoor carpet) floor surfaces, as well as transitioning from one surface to another. Responses studied included: required coefficient of friction (RCOF), stride length (SL), and minimum toe clearance (MTC). Significant effects were found for the floor surface, load versus no load condition, and some interactions involving age (older versus younger subjects). Not all expected differences due to age were found in this experiment. The lack of significant differences between younger and older subjects could be due to the older subjects that participated in the experiment. They were volunteers at a local medical center, were in good physical shape, and were probably not typical of the population of people over 65 years of age.