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 |
Copyright and 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) |
Download PDF |
MBE2008-53 |
|