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. 2015 May 30;14:51. doi: 10.1186/s12938-015-0051-3

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© Lee et al. 2015

Open AccessThis 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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Experiment paradigm. During the first 15 s, each participant takes a rest. Next, participants perform the VM for 15 s. The participants then take a rest again for 15 s.