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. 2014 Mar 5;10:58. doi: 10.1186/1746-6148-10-58

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Copyright © 2014 Olby et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. 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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Correlation of the stepping score for the entire videotape of a treadmill session with scoring of 75 (a), 45 (b) and 15 (c) second excerpts of the videotapes. The r² value for (a) is 0.96, for (b) is 0.733 and for (c) is 0.52.