Comparison of volleyball athletes by the kinematic and dynamic analysis of the service balls trajectories
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Data de Publicação: | 2008 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Journal of Physical Education (Maringá) |
Texto Completo: | https://periodicos.uem.br/ojs/index.php/RevEducFis/article/view/3425 |
Resumo: | The aim of this study was to compare the volleyball athletes by the kinematic and dynamic analysis of the service balls trajectories. The sample comprised 11 players of the volleyball basic categories, and one of the adult category. Each player makes four types of services. 128 services are executed and video taped. The throws are selected, digitalized and 3D reconstructed by the DLT method. The velocity and acceleration of the ball, the initial throw angle and initial height, as well as the height that the balls reaches above the net are calculated, and the Drag Coefficient (CD) and Reynolds’ Number (Re) for each service are estimated. Considering the kinematic variables, better results of the high level player in relation to the other players were observed. The differences between the other categories of players are less evident and are different from service to service and from variable to variable. The distribution of the services concerning the relation between the Drag Coefficient and Reynolds’ Number shows that the floating with jump services of the basic categories are observed in the region of a wide range of the Drag Coefficient. |
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Comparison of volleyball athletes by the kinematic and dynamic analysis of the service balls trajectoriesCOMPARAÇÃO DE ATLETAS DO VOLEIBOL ATRAVÉS DA ANÁLISE CINEMÁTICA E DINÂMICA DE TRAJETÓRIAS DE BOLAS DE SAQUECinemáticaDinâmicaBiomecânicaVoleibol4.09.00.00-2 Educação FísicaThe aim of this study was to compare the volleyball athletes by the kinematic and dynamic analysis of the service balls trajectories. The sample comprised 11 players of the volleyball basic categories, and one of the adult category. Each player makes four types of services. 128 services are executed and video taped. The throws are selected, digitalized and 3D reconstructed by the DLT method. The velocity and acceleration of the ball, the initial throw angle and initial height, as well as the height that the balls reaches above the net are calculated, and the Drag Coefficient (CD) and Reynolds’ Number (Re) for each service are estimated. Considering the kinematic variables, better results of the high level player in relation to the other players were observed. The differences between the other categories of players are less evident and are different from service to service and from variable to variable. The distribution of the services concerning the relation between the Drag Coefficient and Reynolds’ Number shows that the floating with jump services of the basic categories are observed in the region of a wide range of the Drag Coefficient.O objetivo deste trabalho é realizar uma comparação de atletas de voleibol através da análise cinemática e dinâmica de trajetórias de bolas de saque. A amostra é composta de 11 jogadores das categorias de base do voleibol e um da categoria adulto. Cada jogador realiza quatro tipos de saque. São executados e filmados 128 saques. Os lançamentos são selecionados, digitalizados e reconstruídos em 3D pelo método DLT. São calculados as velocidades e as acelerações da bola, o ângulo e altura inicial de lançamento e a altura a que a bola passa acima da rede, e estimados o coeficiente de arrasto (CD) e o número de Reynolds (Re) para cada saque. Quanto às variáveis cinemáticas observam-se melhores resultados do jogador de alto nível em relação aos demais jogadores. As diferenças entre as outras categorias de jogadores são menos aparentes e se diferenciam de saque para saque e de variável para variável. A distribuição dos saques na relação do coeficiente de arrasto e do número de Reynolds demonstra que os do tipo flutuante com suspensão das categorias de base se localizam na região de grande variação do coeficiente de arrasto.Department of Physical Education - State University of Maringá (UEM), Maringá-PR, Brazil2008-05-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.uem.br/ojs/index.php/RevEducFis/article/view/3425Journal of Physical Education; Vol 15 No 1 (2004); 7-15Journal of Physical Education; Vol. 15 Núm. 1 (2004); 7-15Journal of Physical Education; v. 15 n. 1 (2004); 7-152448-2455reponame:Journal of Physical Education (Maringá)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttps://periodicos.uem.br/ojs/index.php/RevEducFis/article/view/3425/2457Deprá, Pedro PauloBrenzikofer, Renéinfo:eu-repo/semantics/openAccess2023-01-10T15:37:14Zoai:periodicos.uem.br/ojs:article/3425Revistahttp://periodicos.uem.br/ojs/index.php/RevEducFis/indexPUBhttps://old.scielo.br/oai/scielo-oai.php||revdef@uem.br2448-24552448-2455opendoar:2023-01-10T15:37:14Journal of Physical Education (Maringá) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Comparison of volleyball athletes by the kinematic and dynamic analysis of the service balls trajectories COMPARAÇÃO DE ATLETAS DO VOLEIBOL ATRAVÉS DA ANÁLISE CINEMÁTICA E DINÂMICA DE TRAJETÓRIAS DE BOLAS DE SAQUE |
title |
Comparison of volleyball athletes by the kinematic and dynamic analysis of the service balls trajectories |
spellingShingle |
Comparison of volleyball athletes by the kinematic and dynamic analysis of the service balls trajectories Deprá, Pedro Paulo Cinemática Dinâmica Biomecânica Voleibol 4.09.00.00-2 Educação Física |
title_short |
Comparison of volleyball athletes by the kinematic and dynamic analysis of the service balls trajectories |
title_full |
Comparison of volleyball athletes by the kinematic and dynamic analysis of the service balls trajectories |
title_fullStr |
Comparison of volleyball athletes by the kinematic and dynamic analysis of the service balls trajectories |
title_full_unstemmed |
Comparison of volleyball athletes by the kinematic and dynamic analysis of the service balls trajectories |
title_sort |
Comparison of volleyball athletes by the kinematic and dynamic analysis of the service balls trajectories |
author |
Deprá, Pedro Paulo |
author_facet |
Deprá, Pedro Paulo Brenzikofer, René |
author_role |
author |
author2 |
Brenzikofer, René |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Deprá, Pedro Paulo Brenzikofer, René |
dc.subject.por.fl_str_mv |
Cinemática Dinâmica Biomecânica Voleibol 4.09.00.00-2 Educação Física |
topic |
Cinemática Dinâmica Biomecânica Voleibol 4.09.00.00-2 Educação Física |
description |
The aim of this study was to compare the volleyball athletes by the kinematic and dynamic analysis of the service balls trajectories. The sample comprised 11 players of the volleyball basic categories, and one of the adult category. Each player makes four types of services. 128 services are executed and video taped. The throws are selected, digitalized and 3D reconstructed by the DLT method. The velocity and acceleration of the ball, the initial throw angle and initial height, as well as the height that the balls reaches above the net are calculated, and the Drag Coefficient (CD) and Reynolds’ Number (Re) for each service are estimated. Considering the kinematic variables, better results of the high level player in relation to the other players were observed. The differences between the other categories of players are less evident and are different from service to service and from variable to variable. The distribution of the services concerning the relation between the Drag Coefficient and Reynolds’ Number shows that the floating with jump services of the basic categories are observed in the region of a wide range of the Drag Coefficient. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-05-16 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.uem.br/ojs/index.php/RevEducFis/article/view/3425 |
url |
https://periodicos.uem.br/ojs/index.php/RevEducFis/article/view/3425 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.uem.br/ojs/index.php/RevEducFis/article/view/3425/2457 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Department of Physical Education - State University of Maringá (UEM), Maringá-PR, Brazil |
publisher.none.fl_str_mv |
Department of Physical Education - State University of Maringá (UEM), Maringá-PR, Brazil |
dc.source.none.fl_str_mv |
Journal of Physical Education; Vol 15 No 1 (2004); 7-15 Journal of Physical Education; Vol. 15 Núm. 1 (2004); 7-15 Journal of Physical Education; v. 15 n. 1 (2004); 7-15 2448-2455 reponame:Journal of Physical Education (Maringá) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Journal of Physical Education (Maringá) |
collection |
Journal of Physical Education (Maringá) |
repository.name.fl_str_mv |
Journal of Physical Education (Maringá) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||revdef@uem.br |
_version_ |
1754732541035675648 |