Title :
Characteristic mapping and performance evaluation of a stance posture control system
Author :
Kikuchi, M. ; Shiraishi, M.
Author_Institution :
Graduate Sch., Ibaraki Univ., Japan
Abstract :
A new evaluation method representing human dynamics has been proposed on the basis of measurements of swaying conditions in the standing position. This measures the center of gravity of a subject when a simple load is applied. The stance posture system is identified by using an auto-regressive moving average exogenous model and an extended least squares method. This approach enables us to model human standing with swaying about a point of equilibrium condition. Small changes in total body sway are comparable to those seen during natural swaying in human stance, by plotting all poles of the transfer function
Keywords :
autoregressive moving average processes; biocontrol; biomechanics; biomedical measurement; least squares approximations; medical computing; auto-regressive moving average exogenous model; center of gravity; characteristic mapping; equilibrium; extended least squares method; human dynamics; load; performance evaluation; poles; small total body sway changes; stance posture control system; standing position; swaying condition; transfer function; Artificial neural networks; Biological neural networks; Biological system modeling; Control systems; Gravity; Humans; Musculoskeletal system; Nervous system; Position measurement; Testing;
Conference_Titel :
Systems, Man, and Cybernetics, 1999. IEEE SMC '99 Conference Proceedings. 1999 IEEE International Conference on
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5731-0
DOI :
10.1109/ICSMC.1999.814061
