Title :
Characteristics of proprioceptive feedback in postural control
Author :
Fukuoka, Yutaka ; Nagata, Takanobu ; Ishida, Akimasa ; Minamitani, Haruyuki
Author_Institution :
Inst. of Biomater. & Bioeng., Tokyo Med. & Dental Univ., Japan
Abstract :
In the present study, the proprioceptive feedback system in postural control was investigated. To suppress the vestibular and visual feedback paths, a subject stood on a servo-driven platform with a fixed back support. The subject controlled a computer model which simulated body dynamics. Information on the sway angle of the model was provided through the proprioceptive feedback path. Frequency response functions for the ankle moment in response to the sway angle were calculated. The experimental results showed derivative characteristics: gain increase with frequency and phase lead in the low frequency range
Keywords :
autoregressive moving average processes; biocontrol; biomechanics; feedback; frequency response; maximum likelihood estimation; mechanoception; physiological models; ARMAX model; ankle moment; body dynamics simulation; derivative characteristics; fixed back support; frequency response functions; gain increase; maximum likelihood identification; phase lead; postural control; proprioceptive feedback; sensory feedback; servo-driven platform; subject controlled computer model; sway angle; Back; Biomedical engineering; Control systems; Dentistry; Feedback control; Frequency response; Humans; Medical control systems; Sensor phenomena and characterization; Sensor systems;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802620
