视力正常者和视障步行者步长与步频的变异性。
Variability in the Length and Frequency of Steps of Sighted and Visually Impaired Walkers.
作者信息
Mason Sarah J, Legge Gordon E, Kallie Christopher S
机构信息
Research assistant, University of Minnesota; 75 East River Road, Minneapolis, MN 55455.
出版信息
J Vis Impair Blind. 2005;99(12):741-754.
Abstract
The variability of the length and frequency of steps was measured in sighted and visually impaired walkers at three different paces. The variability was low, especially at the preferred pace, and similar for both groups. A model incorporating step counts and step frequency provides good estimates of the distance traveled. Applications to wayfinding technology are discussed.
摘要
在视力正常和视力受损的步行者中，以三种不同步速测量了步长和步频的变异性。变异性较低，尤其是在首选步速时，且两组相似。一个结合步数和步频的模型能很好地估计行进的距离。文中讨论了其在寻路技术中的应用。
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