Effects of stance width on control gain in standing balance.
Effects of stance width on control gain in standing balance.
复制标题
站立宽度对站立平衡控制增益的影响。
DOI：
10.1109/iembs.2006.259876
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
Deweerth,SP
中科院分区：
文献类型：
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作者：
Scrivens,JE;Ting,LH;Deweerth,SP
在横向扰动期间站在宽站姿被认为比站在窄站姿更容易，但这种轻松站姿的基础尚不清楚。为了研究增加站立宽度对平衡控制的影响，我们建立了一个站立宽度可变的猫模型，并对其进行了横向位移扰动。我们研究了平衡控制，而不同的姿势方向和控制参数，是不可访问的生物猫。我们确定，在姿势控制器的延迟反馈需要减少主动反馈增益的立场宽度从窄到宽的立场增加。通过在一个类似于生物学结构的系统中建立控制要求的变化，我们可以预测在生物学系统中可能发生类似的控制变化。
Standing in a wide stance during a lateral perturbation is considered to be easier than standing in a narrow stance, but the basis for this ease of stance is not understood. To study the effects of increased stance width in balance control, we created a standing model of a cat with variable stance width and subjected it to lateral displacement perturbations. We studied balance control while varying postural orientation and control parameters that are not accessible in a biological cat. We determined that delayed feedback in the postural controller necessitates the reduction of active feedback gain as stance width increases from narrow to wide stance. By establishing the change in control requirements in a system that resembles a biological configuration, we can predict that similar control changes may occur in biological systems.