Paper Abstract and Keywords |
Presentation |
2016-11-19 13:50
Hand-Joint Freezing Strategy and Its Model in Human Three-Joint Arm's Reaching Movements Toshikazu Matsui, Takumi Suzuki, Tomohiro Furuya (Gunma Univ.) MBE2016-56 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
When we move our own arm in our daily life, we experience that our hand-joint angle hardly changes during the movement. This research discusses the hand-joint control strategy based on measuring the hand-joint angle and computing all the external torques acting on the hand joint during three-joint arm’s reaching movements, and moreover, it discusses the biological relation between the human hand-joint control mechanism and its feedback control model. Consequently, the following results are obtained: (1) the hand-joint angle hardly changes during unconstrained reaching movements; (2) the sum (i.e., resultant torque) of the hand-joint torque and the inertia torque acting integrated over the entire movement approaches zero; (3) the mechanism of the feedback control model corresponds to the biological mechanism that the hand-joint torque is generated by summation of two torques based on agonist and antagonist muscles in co-contraction; (4) the model’s feedback gain controls the strength of co-contraction (stiffness). These results suggest that hand joints are controlled by a strategy such as freezing and that the feedback control model can be a plausible model of the human hand-joint control mechanism. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Reaching / Hand joint / Feedback control model / Hand joint torque / Inertia torque / Co-contraction / Freezing / |
Reference Info. |
IEICE Tech. Rep., vol. 116, no. 312, MBE2016-56, pp. 39-44, Nov. 2016. |
Paper # |
MBE2016-56 |
Date of Issue |
2016-11-11 (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) |
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MBE2016-56 |
Conference Information |
Committee |
MBE NC |
Conference Date |
2016-11-18 - 2016-11-19 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tohoku University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
MBE |
Conference Code |
2016-11-MBE-NC |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Hand-Joint Freezing Strategy and Its Model in Human Three-Joint Arm's Reaching Movements |
Sub Title (in English) |
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Keyword(1) |
Reaching |
Keyword(2) |
Hand joint |
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Feedback control model |
Keyword(4) |
Hand joint torque |
Keyword(5) |
Inertia torque |
Keyword(6) |
Co-contraction |
Keyword(7) |
Freezing |
Keyword(8) |
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1st Author's Name |
Toshikazu Matsui |
1st Author's Affiliation |
Gunma University (Gunma Univ.) |
2nd Author's Name |
Takumi Suzuki |
2nd Author's Affiliation |
Gunma University (Gunma Univ.) |
3rd Author's Name |
Tomohiro Furuya |
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Gunma University (Gunma Univ.) |
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Speaker |
Author-1 |
Date Time |
2016-11-19 13:50:00 |
Presentation Time |
25 minutes |
Registration for |
MBE |
Paper # |
MBE2016-56 |
Volume (vol) |
vol.116 |
Number (no) |
no.312 |
Page |
pp.39-44 |
#Pages |
6 |
Date of Issue |
2016-11-11 (MBE) |
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