TY - GEN
T1 - Muscle control of fore-aft and vertical body center of mass accelerations of human slip recovery gait
T2 - 13th IEEE Conference on Automation Science and Engineering, CASE 2017
AU - Sun, Wenwen
AU - Li, Guangyi
AU - Yi, Jingang
AU - Li, Qingguo
AU - Liu, Tao
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/1
Y1 - 2017/7/1
N2 - The human brain is equipped with a motor control system that can prevent most falling situations due to foot slip from happening. The aim of this study is to check out how individual lower limb muscles accelerate the body center of mass (COM) during single and double support in human slip recovery gait. Subjects were recruited to conduct both the slip recovery gait and normal walking gait experiments. The walking motion and ground reaction forces (GRF) were measured by an optical motion tracking system and a wearable GRF sensor system, respectively. Then muscle-driven simulations were conducted in OpenSim. An induced acceleration analysis determined the contribution of each muscle to COM accelerations. We found that vastus intermedius, medial gastrocnemius, soleus, and tibialis anterior were the primary contributors to fore-aft and vertical body COM accelerations both in normal walking gait and slip recovery gait, and more muscle contributors were involved in slip recovery gait, which accomplished slip recovery gait with their control pattern responding to foot slip.
AB - The human brain is equipped with a motor control system that can prevent most falling situations due to foot slip from happening. The aim of this study is to check out how individual lower limb muscles accelerate the body center of mass (COM) during single and double support in human slip recovery gait. Subjects were recruited to conduct both the slip recovery gait and normal walking gait experiments. The walking motion and ground reaction forces (GRF) were measured by an optical motion tracking system and a wearable GRF sensor system, respectively. Then muscle-driven simulations were conducted in OpenSim. An induced acceleration analysis determined the contribution of each muscle to COM accelerations. We found that vastus intermedius, medial gastrocnemius, soleus, and tibialis anterior were the primary contributors to fore-aft and vertical body COM accelerations both in normal walking gait and slip recovery gait, and more muscle contributors were involved in slip recovery gait, which accomplished slip recovery gait with their control pattern responding to foot slip.
UR - https://www.scopus.com/pages/publications/85044925360
UR - https://www.scopus.com/pages/publications/85044925360#tab=citedBy
U2 - 10.1109/COASE.2017.8256300
DO - 10.1109/COASE.2017.8256300
M3 - Conference contribution
AN - SCOPUS:85044925360
T3 - IEEE International Conference on Automation Science and Engineering
SP - 1408
EP - 1413
BT - 2017 13th IEEE Conference on Automation Science and Engineering, CASE 2017
PB - IEEE Computer Society
Y2 - 20 August 2017 through 23 August 2017
ER -