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| Presentation | 2011-03-07 16:25 Two Dimensional Measurement of Displacement Mechanomyographic Signal Hisao Oka (Okayama Univ.), Takumu Hattori (Hyogo AssisTech), Tomoki Kitawaki, Motoi Okamoto (Okayama Univ.), Noriaki Ichihashi (Kyoto Univ.), Masaki Yoshida (O.E.C.U.)  MBE2010-110 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Skeletal muscle consists of large numbers of motor units, each of which fires independently during voluntary contraction. The myoelectric signal which is recorded on the skin surface, namely a surface electromyogram (sEMG), is a time-related and spatial aggregate of the action potentials of these motor units. Mechanomyographic siganal (MMG) is a skin surface vibration caused by muscle contraction and recorded by an accelerometer, a microphone, a displacement transducer etc. Though the EMG (electromyogram) is a signal to contract a skeletal muscle, the MMG directly reflects the activity of muscle contraction. The two-dimensional generating mechanism of MMG has not been clarified in detail, because the simultaneous and multiple measurements of MMG and its analysis methods were undeveloped. In this study, the displacement MMGs were recorded at twenty-one points within 2x6 cm, and the MMG maps were described, while the electrical stimulation was made on the motor point of biceps brachii, and the spatial propagation of twitch waveform was discussed. As a result, it was clarified that the waveform amplitude decreases with propagation along the longitudinal axis of muscle fiber. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | mechanomyogram / MMG / propagation / muscle contraction / multiple measurement / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 460, MBE2010-110, pp. 43-48, March 2011. | |
| Paper # | MBE2010-110 | |
| Date of Issue | 2011-02-28 (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 | MBE2010-110 |
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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 | MBE |
| Conference Code | 2011-03-NC-MBE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Two Dimensional Measurement of Displacement Mechanomyographic Signal |
| Sub Title (in English) | |
| Keyword(1) | mechanomyogram |
| Keyword(2) | MMG |
| Keyword(3) | propagation |
| Keyword(4) | muscle contraction |
| Keyword(5) | multiple measurement |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Hisao Oka |
| 1st Author's Affiliation | Okayama University (Okayama Univ.) |
| 2nd Author's Name | Takumu Hattori |
| 2nd Author's Affiliation | The Hyogo Institute of Assistive Technology (Hyogo AssisTech) |
| 3rd Author's Name | Tomoki Kitawaki |
| 3rd Author's Affiliation | Okayama University (Okayama Univ.) |
| 4th Author's Name | Motoi Okamoto |
| 4th Author's Affiliation | Okayama University (Okayama Univ.) |
| 5th Author's Name | Noriaki Ichihashi |
| 5th Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 6th Author's Name | Masaki Yoshida |
| 6th Author's Affiliation | Osaka Electro-Communication University (O.E.C.U.) |
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| Speaker | 1 |
| Date Time | 2011-03-07 16:25:00 |
| Presentation Time | 25 |
| Registration for | MBE |
| Paper # | IEICE-MBE2010-110 |
| Volume (vol) | IEICE-110 |
| Number (no) | no.460 |
| Page | pp.43-48 |
| #Pages | IEICE-6 |
| Date of Issue | IEICE-MBE-2011-02-28 |
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