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. 2014 Jul 28;10:25. doi: 10.1186/1744-9081-10-25

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Copyright © 2014 Mizuno 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/4.0), 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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Correlations between fatigue sensation and change in autonomic nerve activity during the short-duration cognitive test. Correlations based on stepwise multiple regression analyses between baseline visual analogue scale (VAS) score for fatigue and (a) change of ln HF from EOB to EOA, (b) change of LF/HF ratio from EOB to KPT-DS, (c) change of LF/HF ratio from EOB to EOA, and (d) change of LF/HF ratio from EOB to ECA. EOB, eyes open before; KPT-DS, dual-task session of kana pick-out test; EOA, eyes open after; ECA, eyes closed after.