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. Author manuscript; available in PMC: 2017 Oct 15.
Published in final edited form as: Neuroscience. 2016 Aug 13;334:283–289. doi: 10.1016/j.neuroscience.2016.08.017

Figure 1.

Figure 1

Illustration of primary and secondary outcomes. Backward Perturbation refers to a forward translation of the support surface, with backward displacement of the center of mas (COM). The margin of stability (MOS) represents the distance between the base of support (heel) and the extrapolated CoM (XCOM). Adapted from Peterson et al. 2015; Archives of Physical Medicine & Rehabilitation).