Research on Body Type Correction of FINA Diving Difficulty Coefficient Based on Rigid Body System

In order to reduce the influence of athlete’s body shape on the difficulty coefficient of diving, a more reasonable calculation method of body shape correction coefficient is proposed based on the original calculation rules of diving difficulty coefficient. First, the composition of the original div...

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Main Authors: Su Zhang, Wen Xiang, Guozhong Zou
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Complexity
Online Access:http://dx.doi.org/10.1155/2021/5519947
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author Su Zhang
Wen Xiang
Guozhong Zou
author_facet Su Zhang
Wen Xiang
Guozhong Zou
author_sort Su Zhang
collection DOAJ
description In order to reduce the influence of athlete’s body shape on the difficulty coefficient of diving, a more reasonable calculation method of body shape correction coefficient is proposed based on the original calculation rules of diving difficulty coefficient. First, the composition of the original diving difficulty coefficient and influencing factors is analyzed and the relationship between the various structural parts is fully clarified. Second, a coupled nonrigid body dynamics model is established and a 2-body model is used to simulate complex diving actions, and it is concluded that diving time is positively correlated with body shape. Finally, the air movement part and the water entry part of diving are discussed separately, the calculation model of the difficulty coefficient of body shape correction is established, and the original difficulty coefficient is corrected. The results show that the difficulty coefficient of each movement is obviously increased. This effectively avoids the influence of body shape on the diving difficulty coefficient.
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institution Kabale University
issn 1076-2787
1099-0526
language English
publishDate 2021-01-01
publisher Wiley
record_format Article
series Complexity
spelling doaj-art-2e61224811394020906cfa023454df5d2025-02-03T06:43:55ZengWileyComplexity1076-27871099-05262021-01-01202110.1155/2021/55199475519947Research on Body Type Correction of FINA Diving Difficulty Coefficient Based on Rigid Body SystemSu Zhang0Wen Xiang1Guozhong Zou2Department of Physical Education, Anhui University of Finance and Economics, Bengbu 233030, ChinaSchool of Statistics and Applied Mathematics, Anhui University of Finance and Economics, Bengbu 233030, ChinaSchool of Physical Education and Humanities, Nanjing Sport Institute, Nanjing 210014, ChinaIn order to reduce the influence of athlete’s body shape on the difficulty coefficient of diving, a more reasonable calculation method of body shape correction coefficient is proposed based on the original calculation rules of diving difficulty coefficient. First, the composition of the original diving difficulty coefficient and influencing factors is analyzed and the relationship between the various structural parts is fully clarified. Second, a coupled nonrigid body dynamics model is established and a 2-body model is used to simulate complex diving actions, and it is concluded that diving time is positively correlated with body shape. Finally, the air movement part and the water entry part of diving are discussed separately, the calculation model of the difficulty coefficient of body shape correction is established, and the original difficulty coefficient is corrected. The results show that the difficulty coefficient of each movement is obviously increased. This effectively avoids the influence of body shape on the diving difficulty coefficient.http://dx.doi.org/10.1155/2021/5519947
spellingShingle Su Zhang
Wen Xiang
Guozhong Zou
Research on Body Type Correction of FINA Diving Difficulty Coefficient Based on Rigid Body System
Complexity
title Research on Body Type Correction of FINA Diving Difficulty Coefficient Based on Rigid Body System
title_full Research on Body Type Correction of FINA Diving Difficulty Coefficient Based on Rigid Body System
title_fullStr Research on Body Type Correction of FINA Diving Difficulty Coefficient Based on Rigid Body System
title_full_unstemmed Research on Body Type Correction of FINA Diving Difficulty Coefficient Based on Rigid Body System
title_short Research on Body Type Correction of FINA Diving Difficulty Coefficient Based on Rigid Body System
title_sort research on body type correction of fina diving difficulty coefficient based on rigid body system
url http://dx.doi.org/10.1155/2021/5519947
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AT wenxiang researchonbodytypecorrectionoffinadivingdifficultycoefficientbasedonrigidbodysystem
AT guozhongzou researchonbodytypecorrectionoffinadivingdifficultycoefficientbasedonrigidbodysystem