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. 2015 Aug 23;12:70. doi: 10.1186/s12984-015-0051-3

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© IJmker et al. 2015

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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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Fig. 5 — Changes in muscle activation patterns based on PCA analysis. Left column: root mean squared value (RMS ^(j)) for first three modes for each condition averaged over subjects. Right column: Relative phase distribution plot (∆φ), for relative phase between mode 1 and 2, and variance (V) in relative phase between mode 1 and 2. As can be seen, the relative phase between mode 1 and 2 is centered between 240 and 300 (or: −60 and −100) degrees