基于足底压力的舌头放置触觉生物反馈如何在安静站立期间改变姿势控制机制
How a plantar pressure-based, tongue-placed tactile biofeedback modifies postural control mechanisms during quiet standing
摘要：
本研究的目的是确定一个足底压力为基础的，舌头放置触觉生物反馈对姿势控制机制在安静的站立。为此，16名健康青年被要求在无生物反馈和生物反馈两种情况下，闭着眼睛尽可能不动地站立。使用测力平台记录的足底压力中心（CoP）位移用于计算重心垂直投影的水平位移（CoGh）以及CoP与CoG垂直投影之差的水平位移（CoP-CoGv）。总之，目前的研究结果表明，足底压力为基础的，舌头放置触觉生物反馈改善姿势控制在安静的站立是通过降低校正阈值和提高效率的纠正机制，涉及CoGh位移。
英文摘要：
The purpose of the present study was to determine the effects of a plantar pressure-based, tongue-placed tactile biofeedback on postural control mechanisms during quiet standing. To this aim, sixteen young healthy adults were asked to stand as immobile as possible with their eyes closed in two conditions of No-biofeedback and Biofeedback. Centre of foot pressure (CoP) displacements, recorded using a force platform, were used to compute the horizontal displacements of the vertical projection the centre of gravity (CoGh) and those of the difference between the CoP and the vertical projection of the CoG (CoP-CoGv). Altogether, the present findings suggest that the main way the plantar pressure-based, tongue-placed tactile biofeedback improves postural control during quiet standing is via both a reduction of the correction thresholds and an increased efficiency of the corrective mechanism involving the CoGh displacements.
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