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. 2018 Dec 13;9:1045. doi: 10.3389/fneur.2018.01045

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Copyright © 2018 Peterka, Murchison, Parrington, Fino and King.

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) and the copyright owner(s) 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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Correlation of neural controller and torque feedback parameters with mgh (body mass excluding feet x gravity constant × center of mass height above ankle joints). Individual values are shown for 40 subjects from the surface-tilt, eyes closed, 2° tests. In (A), the K_p and K_d parameters are from the model with proportional-derivative control plus torque feedback and K_i is from the model with proportional-integral-derivative control. (B) shows a negative correlation between the torque feedback parameter K_t and mgh.