Bardy Benoît G, Oullier Olivier, Lagarde Julien, Stoffregen Thomas A
Laboratoire Efficience et Déficience Motrices, Université Montpellier I and Institut Universitaire de France, Paris, France.
J Mot Behav. 2007 Jul;39(4):326-36. doi: 10.3200/JMBR.39.4.326-336.
In studies of postural control, investigators have used either experimentally induced perturbations to stance or unperturbed stance. The distinction between perturbed and unperturbed stance has gained renewed importance in the context of inphase and antiphase coordination of the hips and ankles. Several contributions have replicated the findings published over the past decade, suggesting the possibility of a unified view of postural control. However, any proposed unified view depends on how so called perturbed and unperturbed are defined. The authors argue that, to date, there is no explicit and general definition of those terms. The main reason is that all perturbations are relative and depend on appropriate frames of reference for perception and action. Arguments about empirical or theoretical unification of perturbed and unperturbed stance are premature.
在姿势控制研究中，研究人员要么使用实验诱导的姿势扰动，要么使用无扰动姿势。在髋部和脚踝的同相和反相协调背景下，扰动姿势和无扰动姿势之间的区别再次变得重要。过去十年发表的几项研究成果得到了重复，这表明姿势控制可能存在统一观点。然而，任何提出的统一观点都取决于如何定义所谓的扰动和无扰动。作者认为，迄今为止，这些术语尚无明确的通用定义。主要原因是所有扰动都是相对的，并且取决于感知和行动的适当参照系。关于扰动姿势和无扰动姿势的经验或理论统一的争论为时过早。
