Gait dynamics, fractals and falls: Finding meaning in the stride-to-stride fluctuations of human walking
Gait dynamics, fractals and falls: Finding meaning in the stride-to-stride fluctuations of human walking
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DOI：
10.1016/j.humov.2007.05.003
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发表时间：
2007-08-01
影响因子：
2.1
通讯作者：
Hausdorff, Jeffrey M.
中科院分区：
文献类型：
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作者：
Hausdorff, Jeffrey M.
直到最近，步行的定量研究通常集中在典型或平均步幅的特性上，忽略了步幅之间的波动，并认为这些波动是噪音。然而，过去20年的研究表明，所谓的噪音实际上传达了重要的信息。步幅波动的幅度及其在步行过程中随时间的变化-步态动力学-可能有助于理解步态的生理学，量化运动控制系统中与年龄相关的病理变化，以及增强对移动性和功能状态的客观测量。事实上，步态动力学的改变可能有助于确定疾病的严重程度、药物效用和跌倒风险，并客观地记录对治疗干预的反应的改善，这超出了基于平均典型步幅的测量所能收集到的。这篇评论讨论了支持的想法，步态动力学的意义，并可能是有用的，在提供深入了解运动的神经控制和增强功能评估老化，慢性疾病，以及它们对流动性的影响。(c)2007 Elsevier B. V.保留所有权利。
Until recently, quantitative studies of walking have typically focused on properties of a typical or average stride, ignoring the stride-to-stride fluctuations and considering these fluctuations to be noise. Work over the past two decades has demonstrated, however, that the alleged noise actually conveys important information. The magnitude of the stride-to-stride fluctuations and their changes over time during a walk - gait dynamics - may be useful in understanding the physiology of gait, in quantifying age-related and pathologic alterations in the locomotor control system, and in augmenting objective measurement of mobility and functional status. Indeed, alterations in gait dynamics may help to determine disease severity, medication utility, and fall risk, and to objectively document improvements in response to therapeutic interventions, above and beyond what can be gleaned from measures based on the average, typical stride. This review discusses support for the idea that gait dynamics has meaning and may be useful in providing insight into the neural control of locomotion and for enhancing functional assessment of aging, chronic disease, and their impact on mobility. (c) 2007 Elsevier B.V. All rights reserved.