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. 2014 Apr 7;11:50. doi: 10.1186/1743-0003-11-50

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Copyright © 2014 Chen et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Group means and standard deviation of the EMG data. Group means and standard deviation of the EMG onset latency (left) and magnitude (right) for the extensor (top) and flexor (bottom) muscles for four types of perturbation. A significant difference between translation and rotation is indicated by*, a significant difference between forward/toe up and backward/toe down is indicated by†, and a significant interaction is indicated by‡.