Variation of linear and nonlinear parameters in the swim strokes according to the level of expertise

Detalhes bibliográficos
Autor(a) principal: Barbosa, Tiago M.
Data de Publicação: 2017
Outros Autores: Goh, Wan X., Morais, J.E., Costa, M.J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10198/14366
Resumo: The aim was to examine the variation of linear and nonlinear proprieties of the behavior in participants with different levels of swimming expertise among the four swim strokes. Seventy-five swimmers were split into three groups (highly qualified experts, experts and nonexperts) and performed a maximal 25m trial for each of the four competitive swim strokes. A speed-meter cable was attached to the swimmer's hip to measure hip speed; from which speed fluctuation (dv), approximate entropy (ApEn) and fractal dimension (D) variables were derived. Although simple main effects of expertise and swim stroke were obtained for dv and D, no significant interaction of expertise and stroke were found except in ApEn. The ApEn and D were prone to decrease with increasing expertise. As a conclusion, swimming does exhibit nonlinear properties but its magnitude differs according to the swim stroke and level of expertise of the performer.
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spelling Variation of linear and nonlinear parameters in the swim strokes according to the level of expertiseComplexityNonlinear parametersPredictabilitySwimmingVariabilityThe aim was to examine the variation of linear and nonlinear proprieties of the behavior in participants with different levels of swimming expertise among the four swim strokes. Seventy-five swimmers were split into three groups (highly qualified experts, experts and nonexperts) and performed a maximal 25m trial for each of the four competitive swim strokes. A speed-meter cable was attached to the swimmer's hip to measure hip speed; from which speed fluctuation (dv), approximate entropy (ApEn) and fractal dimension (D) variables were derived. Although simple main effects of expertise and swim stroke were obtained for dv and D, no significant interaction of expertise and stroke were found except in ApEn. The ApEn and D were prone to decrease with increasing expertise. As a conclusion, swimming does exhibit nonlinear properties but its magnitude differs according to the swim stroke and level of expertise of the performer.Human KineticsBiblioteca Digital do IPBBarbosa, Tiago M.Goh, Wan X.Morais, J.E.Costa, M.J.2017-07-27T14:25:58Z20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/14366engBarbosa, Tiago M.; Goh, Wan X.; Morais, J.E.; Costa, M.J. (2017). Variation of linear and nonlinear parameters in the swim strokes according to the level of expertise. Motor Control. ISSN 10871640. 21:3, p. 312-32610.1123/mc.2015-0097info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-16T01:30:01ZPortal AgregadorONG
dc.title.none.fl_str_mv Variation of linear and nonlinear parameters in the swim strokes according to the level of expertise
title Variation of linear and nonlinear parameters in the swim strokes according to the level of expertise
spellingShingle Variation of linear and nonlinear parameters in the swim strokes according to the level of expertise
Barbosa, Tiago M.
Complexity
Nonlinear parameters
Predictability
Swimming
Variability
title_short Variation of linear and nonlinear parameters in the swim strokes according to the level of expertise
title_full Variation of linear and nonlinear parameters in the swim strokes according to the level of expertise
title_fullStr Variation of linear and nonlinear parameters in the swim strokes according to the level of expertise
title_full_unstemmed Variation of linear and nonlinear parameters in the swim strokes according to the level of expertise
title_sort Variation of linear and nonlinear parameters in the swim strokes according to the level of expertise
author Barbosa, Tiago M.
author_facet Barbosa, Tiago M.
Goh, Wan X.
Morais, J.E.
Costa, M.J.
author_role author
author2 Goh, Wan X.
Morais, J.E.
Costa, M.J.
author2_role author
author
author
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Barbosa, Tiago M.
Goh, Wan X.
Morais, J.E.
Costa, M.J.
dc.subject.por.fl_str_mv Complexity
Nonlinear parameters
Predictability
Swimming
Variability
topic Complexity
Nonlinear parameters
Predictability
Swimming
Variability
description The aim was to examine the variation of linear and nonlinear proprieties of the behavior in participants with different levels of swimming expertise among the four swim strokes. Seventy-five swimmers were split into three groups (highly qualified experts, experts and nonexperts) and performed a maximal 25m trial for each of the four competitive swim strokes. A speed-meter cable was attached to the swimmer's hip to measure hip speed; from which speed fluctuation (dv), approximate entropy (ApEn) and fractal dimension (D) variables were derived. Although simple main effects of expertise and swim stroke were obtained for dv and D, no significant interaction of expertise and stroke were found except in ApEn. The ApEn and D were prone to decrease with increasing expertise. As a conclusion, swimming does exhibit nonlinear properties but its magnitude differs according to the swim stroke and level of expertise of the performer.
publishDate 2017
dc.date.none.fl_str_mv 2017-07-27T14:25:58Z
2017
2017-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10198/14366
url http://hdl.handle.net/10198/14366
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Barbosa, Tiago M.; Goh, Wan X.; Morais, J.E.; Costa, M.J. (2017). Variation of linear and nonlinear parameters in the swim strokes according to the level of expertise. Motor Control. ISSN 10871640. 21:3, p. 312-326
10.1123/mc.2015-0097
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 Human Kinetics
publisher.none.fl_str_mv Human Kinetics
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv
repository.mail.fl_str_mv
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