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. 2015 Sep 26;12:88. doi: 10.1186/s12984-015-0078-5

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© Saengsuwan 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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Fig. 2 — Typical peak cardiopulmonary responses (Subject 8) during the IET test protocol. a Target and measured work rates, b respiratory exchange ratio (RER), c oxygen uptake (V'O₂) and carbon dioxide output (V'CO₂), d heart rate (HR). The plots of RER, V'O₂, V'CO₂ and HR show averages over a 30s moving window