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Paper Abstract and Keywords
Presentation 2024-06-28 13:55
Exploration of postural sway indices reflecting intermittency in neural feedback control during quiet stance for assessing postural impairment in patients with Parkinson's disease
Kazuki Matsui, Yasuyuki Suzuki, Akihiro Nakamura (Osaka Univ.), Charles E. Smith (NC State Univ.), Kunihiko Nomura (Osaka Univ. of Eco.), Takuyuki Endo, Saburo Sakoda (Toneyama Medical Center), Pietro G. Morasso (IIT), Taishin Nomura (Osaka Univ./Kyoto Univ.) MBE2024-8
Abstract (in Japanese) (See Japanese page) 
(in English) The function of static standing posture is quantified using center of pressure (CoP) time series data. Our research group developed a dynamic model of postural control, successfully applied to CoP data from young healthy individuals, elderly healthy individuals, and Parkinson's disease patients. This model could map data into parameter space points of the model, leading to a classification of subjects into intermittent control (young healthy), active continuous control, or passive continuous control (elderly and Parkinson's patients) by means of a data assimilation technique. In this study, we re-analyzed the same data set used in our previous study with the data assimilation, and found that active and passive continuous control groups had higher UPDRS part-III scores for posture and gait than the intermittent control group, indicating utility of the model for evaluating Parkinson's disease. We then identified several model-free CoP sway indices, such as the median power distribution of the CoP power spectrum, that were capable of classifying the subjects in an equivalent manner with the one obtained by the data assimilation, without the high computational cost of data assimilation.
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Reference Info. IEICE Tech. Rep., vol. 124, no. 93, MBE2024-8, pp. 7-10, June 2024.
Paper # MBE2024-8 
Date of Issue 2024-06-21 (MBE) 
ISSN Online edition: ISSN 2432-6380
Copyright
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reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee MBE IEE-MBE  
Conference Date 2024-06-28 - 2024-06-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido University of Science 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ME, etc. 
Paper Information
Registration To MBE 
Conference Code 2024-06-MBE-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Exploration of postural sway indices reflecting intermittency in neural feedback control during quiet stance for assessing postural impairment in patients with Parkinson's disease 
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1st Author's Name Kazuki Matsui  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Yasuyuki Suzuki  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Akihiro Nakamura  
3rd Author's Affiliation Osaka University (Osaka Univ.)
4th Author's Name Charles E. Smith  
4th Author's Affiliation North Carolina State University (NC State Univ.)
5th Author's Name Kunihiko Nomura  
5th Author's Affiliation Osaka University of Economics (Osaka Univ. of Eco.)
6th Author's Name Takuyuki Endo  
6th Author's Affiliation Osaka Toneyama Medical Center (Toneyama Medical Center)
7th Author's Name Saburo Sakoda  
7th Author's Affiliation Osaka Toneyama Medical Center (Toneyama Medical Center)
8th Author's Name Pietro G. Morasso  
8th Author's Affiliation Istituto Italiano di Tecnologia (IIT)
9th Author's Name Taishin Nomura  
9th Author's Affiliation Osaka University/Kyoto University (Osaka Univ./Kyoto Univ.)
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Speaker Author-1 
Date Time 2024-06-28 13:55:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2024-8 
Volume (vol) vol.124 
Number (no) no.93 
Page pp.7-10 
#Pages 4 
Date of Issue 2024-06-21 (MBE) 

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