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Paper Abstract and Keywords
Presentation 2021-06-12 14:50
A note on a stochastic model and injury prediction for sumo wrestlers
Ota Shuhei (Kanagawa Univ.), Kimura Mitsuhiro (Hosei Univ.) R2021-13
Abstract (in Japanese) (See Japanese page) 
(in English) In sumo wrestling, one of the martial arts, sumo wrestlers have a risk of injury due to actual bouts. Sumo wrestlers suffer from the long-term effect of the injury. Besides, the sumo loses its fun because of the increasing number of injury occurrences of sumo wrestlers. We propose a stochastic model of injury occurrences for sumo wrestlers from the viewpoint of risk management. The proposed model provides (i) the estimated probability of an injury occurrence for a sumo wrestler and (ii) the estimated number of absent sumo wrestlers due to injury in a grand sumo tournament. The model parameters are estimated from an actual data set. By statistical analysis for the data set, we also found that the injury occurrence has the random failure period and wear-out failure period, which are well-known in reliability engineering.
Keyword (in Japanese) (See Japanese page) 
(in English) sumo / sumo wrestler / sports injury / injury prediction / statistical data / reliability engineering / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 64, R2021-13, pp. 13-18, June 2021.
Paper # R2021-13 
Date of Issue 2021-06-05 (R) 
ISSN 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 R2021-13

Conference Information
Committee R  
Conference Date 2021-06-12 - 2021-06-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Online (Zoom) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Reliability General 
Paper Information
Registration To R 
Conference Code 2021-06-R 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A note on a stochastic model and injury prediction for sumo wrestlers 
Sub Title (in English)  
Keyword(1) sumo  
Keyword(2) sumo wrestler  
Keyword(3) sports injury  
Keyword(4) injury prediction  
Keyword(5) statistical data  
Keyword(6) reliability engineering  
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Keyword(8)  
1st Author's Name Ota Shuhei  
1st Author's Affiliation Kanagawa University (Kanagawa Univ.)
2nd Author's Name Kimura Mitsuhiro  
2nd Author's Affiliation Hosei University (Hosei Univ.)
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Speaker Author-1 
Date Time 2021-06-12 14:50:00 
Presentation Time 25 minutes 
Registration for R 
Paper # R2021-13 
Volume (vol) vol.121 
Number (no) no.64 
Page pp.13-18 
#Pages 6 
Date of Issue 2021-06-05 (R) 

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