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Paper Abstract and Keywords
Presentation 2011-03-08 11:30
Leg joint synergy in bipedal walking of Japanese monkeys
Shoko Kaichida, Yoshimitsu Hashizume (Yamaguchi Univ.), Naomichi Ogihara (Keio Univ.), Jun Nishii (Yamaguchi Univ.) NC2010-164
Abstract (in Japanese) (See Japanese page) 
(in English) Japanese monkeys ({\it M. fuscata}) that are skilled at bipedalism show stablewalking. In this study, we analyzed the leg joint synergy in bipedal walking of Japanese monkeys by the UCM analysis and examined how hip, knee andankle joints cooperate so as to suppress the variances of toe positionand velocity relative to the hip position. The results show that the degree of joint synergy that suppresses the variance of the toe position becomes large at some moments such as the moment when the toe passes its lowest position. Some differences between monkey and human walking were also found, for instance, just before touch down, high degree of joint synergy was found in monkey walking, however, such characteristics was not found in human walking. These results suggest that there exist some differences in the control strategies of human and monkey bipedalism.
Keyword (in Japanese) (See Japanese page) 
(in English) Japanese monkey / M. fuscata / walking / joint coordination / joint synergy / UCM analysis / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 461, NC2010-164, pp. 217-222, March 2011.
Paper # NC2010-164 
Date of Issue 2011-02-28 (NC) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 NC MBE  
Conference Date 2011-03-07 - 2011-03-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Tamagawa University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NC 
Conference Code 2011-03-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Leg joint synergy in bipedal walking of Japanese monkeys 
Sub Title (in English)  
Keyword(1) Japanese monkey  
Keyword(2) M. fuscata  
Keyword(3) walking  
Keyword(4) joint coordination  
Keyword(5) joint synergy  
Keyword(6) UCM analysis  
1st Author's Name Shoko Kaichida  
1st Author's Affiliation Yamaguchi University (Yamaguchi Univ.)
2nd Author's Name Yoshimitsu Hashizume  
2nd Author's Affiliation Yamaguchi University (Yamaguchi Univ.)
3rd Author's Name Naomichi Ogihara  
3rd Author's Affiliation Keio University (Keio Univ.)
4th Author's Name Jun Nishii  
4th Author's Affiliation Yamaguchi University (Yamaguchi Univ.)
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Date Time 2011-03-08 11:30:00 
Presentation Time 25 
Registration for NC 
Paper # IEICE-NC2010-164 
Volume (vol) IEICE-110 
Number (no) no.461 
Page pp.217-222 
#Pages IEICE-6 
Date of Issue IEICE-NC-2011-02-28 

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