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. 2018 Jan 24;9:22. doi: 10.3389/fphys.2018.00022

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Copyright © 2018 Ateş, Davies, Chopra, Coleman-Wood, Litchy and Kaufman.

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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(A) Ankle torque and (B) IMP of TA muscle during isometric ramp contractions up to 80% MVC at dorsiflexion (DF), neutral (Neutral), and plantarflexion (PF) positions of ankle. Raw IMP and force signals were filtered with a dual-pass 50 Hz 4th-order low pass Butterworth filter. Three ramp contraction trials of each participant were averaged point by point and averages of all participants were calculated and plotted for each position. Error bars set one for 3,000 points (per second) show standard deviation.