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. 2016 Jul 4;16:96. doi: 10.1186/s12890-016-0260-y

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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. 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. 2 — a Heart rate (HR) and SpO₂ during 6MWT according to exercise-induced oxygen desaturation (EID). Data are presented as mean ± standard error of means. **p = 0.002, ^† p < 0.001 versus non-EID. (black line = EID; grey line = non-EID; ▲= SpO2; ●= HR). b BORG score during 6MWT according to exercise-induced oxygen desaturation (EID). Data are presented as mean ± standard error of means. *p = 0.02 versus non-EID. (black line = EID; grey line = non-EID)