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Paper Abstract and Keywords
Presentation 2008-10-30 13:00
Frequency response of biceps brachii muscle during isometric twitch contraction
Yasushi Itoh (Aichi Human Service Center ・ BMC RIKEN), Kumi Akataki (Osaka Electro-Communication Univ.), Katsumi Mita (Seijoh Univ. ・ BMC RIKEN), Makoto Watakabe (Hokkaido Univ. of Education) MBE2008-53
Abstract (in Japanese) (See Japanese page) 
(in English) The aim of the present investigation was to examine the relationship between the frequency transfer function of skeletal muscle and the dynamics of excitation-contraction coupling during isometric twitch contraction produced by surface electrical stimulation. The frequency transfer function of skeletal muscle was predicted to be composed of a proportional, three first order lag and a dead time elements, and then its element constants (a gain constant, three time constants and a dead time) was estimated by best fitting into the frequency response curve of biceps brachii muscle during isometric twitch contraction. As results, it became clear that the gain constant and dead time were positively correlated with the peak torque and delay time of isometric twitch contraction, respectively (P < 0.05), and that three time constants were positively correlated with the delay time, the contraction time and the half relaxation time, respectively (P < 0.05). The results suggest that the element constants of the frequency transfer function of the electrically evoked twitch force reflect the dynamics of three principal compartments (biochemical and biomechanical phases) of excitation-contraction coupling.
Keyword (in Japanese) (See Japanese page) 
(in English) twitch / skeletal muscle model / frequency response / / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 270, MBE2008-53, pp. 1-4, Oct. 2008.
Paper # MBE2008-53 
Date of Issue 2008-10-23 (MBE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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  
Conference Date 2008-10-30 - 2008-10-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka Electro-Communication University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Medical Engineering in general 
Paper Information
Registration To MBE 
Conference Code 2008-10-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Frequency response of biceps brachii muscle during isometric twitch contraction 
Sub Title (in English)  
Keyword(1) twitch  
Keyword(2) skeletal muscle model  
Keyword(3) frequency response  
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1st Author's Name Yasushi Itoh  
1st Author's Affiliation Aichi Human Service Center ・ Bio-mimetic Control Research Center, the Institute of Physical and Chemical Resaerch (Aichi Human Service Center ・ BMC RIKEN)
2nd Author's Name Kumi Akataki  
2nd Author's Affiliation Osaka Electro-Communication University (Osaka Electro-Communication Univ.)
3rd Author's Name Katsumi Mita  
3rd Author's Affiliation Seijoh University ・ Bio-mimetic Control Research Center, the Institute of Physical and Chemical Resaerch (Seijoh Univ. ・ BMC RIKEN)
4th Author's Name Makoto Watakabe  
4th Author's Affiliation Hokkaido University of Education (Hokkaido Univ. of Education)
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Speaker Author-1 
Date Time 2008-10-30 13:00:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2008-53 
Volume (vol) vol.108 
Number (no) no.270 
Page pp.1-4 
#Pages
Date of Issue 2008-10-23 (MBE) 


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