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. 2017 Apr 26;14:55. doi: 10.1186/s12966-017-0513-z

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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. 2 — Time spent cycling (a), percentage of VO₂max (%VO₂max) (c) and time spent in moderate (b) and vigorous (d) intensity physical activity per 10 km during flat (empty) and hilly (filled) on the E-bike (quadrate) and the regular bicycle (triangle). Presented as median and interquartile range