Generalization of treadmill-slip training to prevent a fall following a sudden (novel) slip in over-ground walking
Generalization of treadmill-slip training to prevent a fall following a sudden (novel) slip in over-ground walking
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DOI：
10.1016/j.jbiomech.2012.10.002
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发表时间：
2013-01-04
影响因子：
2.4
通讯作者：
Pai, Yi-Chung
中科院分区：
文献类型：
--
作者：
Yang, Feng;Bhatt, Tanvi;Pai, Yi-Chung
该研究的目的是确定(1)跑步机滑倒训练是否可以减少在地面行走中发生新型滑倒时跌倒的可能性，以及(2)这种（间接）训练与（直接）地面滑倒训练在多大程度上相媲美。跑步机滑动训练组（A组，n=17）最初在跑步机上反复受到干扰，以模拟地面行走时的向前滑动。在必要时，扰动会持续，其强度会降低，以确保被试成功适应。（在连续5次试验中，至少有3次他们的拖脚能在滑脚之前落地）。然后，他们在地上行走时经历了一次新奇的滑倒。B组的另外17名年轻人经历了同样的新奇滑倒，作为对照组。然后，他们在地上行走时进行了更多的滑动试验。对他们的第16次滑动试验进行了分析，以代表地面滑动训练的效果。A组中有8名受试者（47%）第一次在跑步机上滑倒，而所有受试者都在至少15次滑倒试验后成功适应。在地上行走时，他们没有一个人摔倒，而B组的4名受试者（23.5%）在同一试验中摔倒(p
The purposes of the study were to determine (1) whether treadmill-slip training could reduce the likelihood of falls during a novel slip in over-ground walking, and (2) to what extent such (indirect) training would be comparable to (direct) over-ground-slip training. A treadmill-slip training group (Group A, n=17) initially experienced repeated perturbations on treadmill intended to simulate forward-slip in over-ground walking. Perturbation continued and its intensity reduced when necessary to ensure subjects' successful adaptation (Le., when they could land their trailing foot ahead of the slipping foot in at least 3 of 5 consecutive trials). They then experienced a novel slip during over-ground walking. Another 17 young adults in Group B experienced an identical novel slip that served as the controls. They then underwent more slip trials during over-ground walking. Their 16th slip trial was analyzed to represent the over-ground-slip training effect. Eight subjects (47%) in Group A fell upon their first treadmill slip, while all adapted successfully after a minimum of 15 slip trials. Upon the novel slip during over-ground walking, none of them fell in comparison to four subjects (23.5%) fell in Group B upon the same trial (p