TY - JOUR
T1 - Contributions of single and double joint stiffness of human arm during force control
AU - Gomi, Hiroaki
AU - Osu, Rieko
PY - 1996/12/1
Y1 - 1996/12/1
N2 - To investigate the motion control mechanism of human arm during force control, shoulder, elbow, and double-joint stiffness were measured by applying a small perturbation, and their contributions to joint torques were estimated. Each joint stiffness greatly altered for the different force direction at hand, and shoulder and elbow single joint stiffness were linearly correlated to each joint toques. By assuming a linear joint stiffness, generated torques were decomposed into torques produced by each stiffness component. This analysis has revealed that the elbow torque was produced complementary by the single and double-joint stiffness, and that the shoulder torque was mainly produced by the shoulder single joint stiffness. Additionally, the double-joint stiffness was linearly correlated to the decomposed elbow joint torques produced by double-joint stiffness. These results suggest that shoulder and elbow torques are separately controlled by different muscles in this task.
AB - To investigate the motion control mechanism of human arm during force control, shoulder, elbow, and double-joint stiffness were measured by applying a small perturbation, and their contributions to joint torques were estimated. Each joint stiffness greatly altered for the different force direction at hand, and shoulder and elbow single joint stiffness were linearly correlated to each joint toques. By assuming a linear joint stiffness, generated torques were decomposed into torques produced by each stiffness component. This analysis has revealed that the elbow torque was produced complementary by the single and double-joint stiffness, and that the shoulder torque was mainly produced by the shoulder single joint stiffness. Additionally, the double-joint stiffness was linearly correlated to the decomposed elbow joint torques produced by double-joint stiffness. These results suggest that shoulder and elbow torques are separately controlled by different muscles in this task.
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M3 - Conference article
AN - SCOPUS:0030312895
VL - 5
SP - 2244
EP - 2245
JO - Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference
JF - Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference
SN - 1557-170X
T2 - Proceedings of the 1996 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 4 (of 5)
Y2 - 31 October 1996 through 3 November 1996
ER -