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. 2017 Feb 17;14:14. doi: 10.1186/s12984-017-0227-0

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© The Author(s). 2017

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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Fig. 6 — Schematic representation of the relationship between the regions of weight compensation and the virtual workspace projected on the computer screen, as described in the Discussion (SA, slack angle; BA_E, exoskeleton balance angle; BA_A, arm balance angle; FR, functional range; OR, operating range)