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. 2016 Sep 6;41(1):35–44. doi: 10.1007/s10919-016-0240-1

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© The Author(s) 2016

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.

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Fig. 1 — Left the anterior view of marker placements, showing retroreflective markers placed on the acromion process of both shoulders (thorax reference point), the suprasternal notch (thorax reference point) and the crests of the anterior iliac spines (pelvis reference point). Right the posterior view of marker placements, showing retroreflective markers placed on the posterior crests of the iliac spines (pelvis reference point) and a tracking marker placed right of the spine on the upper back (overall reference point)