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Multi-Stimulus Multi-Response Posturography

Johansson, Rolf LU ; Magnusson, Måns LU ; Fransson, Per-Anders LU and Karlberg, Mikael LU (2001) In Mathematical Biosciences 174(1). p.41-59
Abstract
In this study a method for the analysis of simultaneous multiple measurements of kinematics and stabilizing forces related to human postural dynamics is proposed. Each subject in a group of normal subjects (n=10) was tested with eyes-open and eyes-closed with simultaneous but uncorrelated vestibular and proprioceptive stimuli in order to investigate the contributions of individual sensory feedback loops. Statistical analysis was made by means of multi-input multi-output identification of a transfer function from stimuli to stabilizing forces of the feet and the resulting body position, the transfer function being compatible with a biomechanical model formulated as a stabilized segmented inverted pendulum subject to feedback of body sway... (More)
In this study a method for the analysis of simultaneous multiple measurements of kinematics and stabilizing forces related to human postural dynamics is proposed. Each subject in a group of normal subjects (n=10) was tested with eyes-open and eyes-closed with simultaneous but uncorrelated vestibular and proprioceptive stimuli in order to investigate the contributions of individual sensory feedback loops. Statistical analysis was made by means of multi-input multi-output identification of a transfer function from stimuli to stabilizing forces of the feet and the resulting body position, the transfer function being compatible with a biomechanical model formulated as a stabilized segmented inverted pendulum subject to feedback of body sway and position. Each individual model estimated is effective in predicting a subject's response to new stimuli and in describing the interacting effects of stimuli on body kinetics. The proposed methodology responds to the current needs of data analysis of multi-stimulus multi-response experiments. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
System identification, Sensory feedback, Postural control, Posturography
in
Mathematical Biosciences
volume
174
issue
1
pages
41 - 59
publisher
Elsevier
external identifiers
  • scopus:0034759238
ISSN
0025-5564
DOI
10.1016/S0025-5564(01)00075-X
language
English
LU publication?
yes
id
7a11290b-fad9-4a28-a530-ece9fc82e5c0 (old id 162877)
date added to LUP
2007-07-05 11:14:54
date last changed
2018-08-12 04:13:10
@article{7a11290b-fad9-4a28-a530-ece9fc82e5c0,
  abstract     = {In this study a method for the analysis of simultaneous multiple measurements of kinematics and stabilizing forces related to human postural dynamics is proposed. Each subject in a group of normal subjects (n=10) was tested with eyes-open and eyes-closed with simultaneous but uncorrelated vestibular and proprioceptive stimuli in order to investigate the contributions of individual sensory feedback loops. Statistical analysis was made by means of multi-input multi-output identification of a transfer function from stimuli to stabilizing forces of the feet and the resulting body position, the transfer function being compatible with a biomechanical model formulated as a stabilized segmented inverted pendulum subject to feedback of body sway and position. Each individual model estimated is effective in predicting a subject's response to new stimuli and in describing the interacting effects of stimuli on body kinetics. The proposed methodology responds to the current needs of data analysis of multi-stimulus multi-response experiments.},
  author       = {Johansson, Rolf and Magnusson, Måns and Fransson, Per-Anders and Karlberg, Mikael},
  issn         = {0025-5564},
  keyword      = {System identification,Sensory feedback,Postural control,Posturography},
  language     = {eng},
  number       = {1},
  pages        = {41--59},
  publisher    = {Elsevier},
  series       = {Mathematical Biosciences},
  title        = {Multi-Stimulus Multi-Response Posturography},
  url          = {http://dx.doi.org/10.1016/S0025-5564(01)00075-X},
  volume       = {174},
  year         = {2001},
}