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. 2017 Dec 7;8:1015. doi: 10.3389/fphys.2017.01015

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Copyright © 2017 Moo, Leonard and Herzog.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Changes of (A) the mean sarcomere length (SLs), (B) the local coefficient of variation (CV) of SLs and, (C) the SL range, over the 600 ms contraction period measured at the short (blue diamonds) and the long (red squares) muscle lengths. For both muscle lengths, the mean SLs remained constant throughout the contraction period. For the short muscle, the local CV and SL range stayed constant during the 600 ms contraction period. For the long muscle, the local CV and the SL range decreased by ~12% and ~9%, respectively throughout the 600 ms contraction period. ^*Indicates significant relationship between contraction time and local CV, as well as between contraction time and SL range (p < 0.05). EMM-estimated marginal mean.