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. 2018 Nov 27;13(11):e0208070. doi: 10.1371/journal.pone.0208070

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© 2018 Fujita et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 4 — (a) peak pole force, (b) pole contact time, (c) % pole contact time, (d) pole impulse. NWrec: recreationally trained Nordic walkers, NWinstr: Nordic walking instructors, *:NWrec group VS. NWinstr group (P < 0.05).