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| Presentation | 2012-05-25 14:20 An evaluation method for the stretching of the chest observed in baseball pitching Motoki Ida, Toyohiko Hayashi, Yoshinobu Maeda, Tetsuya Watanabe (Niigata Univ.), Hiroshi Tanaka, Hiroki Ninomiya, Masahiko Komai, Katsuya Nobuhara (Nobuhara Hospital)  MBE2012-7 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In baseball pitching, the pitcher's trunk is known to have an important role for conveying the movement energy from the lower limb to the upper limb. In coaching for the trunk motion achieving such role, a term "the stretching of the chest" is used frequently. Its kinematic features, however, has yet to be clarified quantitatively. To clarify "the stretching of the chest" in a scientific sense, we have developed a novel parameter S, which was defined from the positions of several skin markers mounted on the chest and the back. Our preliminary study revealed that the value of S depends primarily on the horizontal abduction of the upper extremity, which is a motion for stretching the chest. Then, in this paper, we applied it to the analysis of baseball pitching in an attempt to evaluate its efficiency in baseball coaching. Empirical results employing three skillful players and three beginners suggested that parameter S has a possibility of analyzing "the stretching of the chest" quantitatively in terms of both time-varying features and kinetic chain to the trunk and the upper extremity. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | baseball pitching / the stretching of the chest / trunk / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 63, MBE2012-7, pp. 35-40, May 2012. | |
| Paper # | MBE2012-7 | |
| Date of Issue | 2012-05-18 (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 | MBE2012-7 |
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| Conference Information | |
| Committee | MBE |
| Conference Date | 2012-05-25 - 2012-05-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | MBE |
| Conference Code | 2012-05-MBE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An evaluation method for the stretching of the chest observed in baseball pitching |
| Sub Title (in English) | |
| Keyword(1) | baseball pitching |
| Keyword(2) | the stretching of the chest |
| Keyword(3) | trunk |
| Keyword(4) | |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Motoki Ida |
| 1st Author's Affiliation | Niigata University (Niigata Univ.) |
| 2nd Author's Name | Toyohiko Hayashi |
| 2nd Author's Affiliation | Niigata University (Niigata Univ.) |
| 3rd Author's Name | Yoshinobu Maeda |
| 3rd Author's Affiliation | Niigata University (Niigata Univ.) |
| 4th Author's Name | Tetsuya Watanabe |
| 4th Author's Affiliation | Niigata University (Niigata Univ.) |
| 5th Author's Name | Hiroshi Tanaka |
| 5th Author's Affiliation | Nobuhara Hospital and Institute of Biomechanics (Nobuhara Hospital) |
| 6th Author's Name | Hiroki Ninomiya |
| 6th Author's Affiliation | Nobuhara Hospital and Institute of Biomechanics (Nobuhara Hospital) |
| 7th Author's Name | Masahiko Komai |
| 7th Author's Affiliation | Nobuhara Hospital and Institute of Biomechanics (Nobuhara Hospital) |
| 8th Author's Name | Katsuya Nobuhara |
| 8th Author's Affiliation | Nobuhara Hospital and Institute of Biomechanics (Nobuhara Hospital) |
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| Speaker | Author-1 |
| Date Time | 2012-05-25 14:20:00 |
| Presentation Time | 25 minutes |
| Registration for | MBE |
| Paper # | MBE2012-7 |
| Volume (vol) | vol.112 |
| Number (no) | no.63 |
| Page | pp.35-40 |
| #Pages | 6 |
| Date of Issue | 2012-05-18 (MBE) |
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