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Hydrodynamic profile of young swimmers: Changes over a competitive season

2015Journal article Open access
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dc.contributor.authorBarbosa, Tiago M.
dc.contributor.authorMorais, Jorge
dc.contributor.authorMarques, MC
dc.contributor.authorSilva, António
dc.contributor.authorMarinho, Sandra
dc.contributor.authorKee, Y. H.
dc.date.accessioned2020-02-18T11:55:36Z
dc.date.available2020-02-18T11:55:36Z
dc.date.issued2015
dc.description.abstractThe aim of this study was to analyze the changes in the hydrodynamic profile of young swimmers over a competitive season and to compare the variations according to a well-designed training periodization. Twenty-five swimmers (13 boys and 12 girls) were evaluated in (a) October (M1); (b) March (M2); and (c) June (M3). Inertial and anthropometrical measures included body mass, swimmer's added water mass, height, and trunk transverse surface area. Swimming efficiency was estimated by the speed fluctuation, stroke index, and approximate entropy. Active drag was estimated with the velocity perturbation method and the passive drag with the gliding decay method. Hydrodynamic dimensionless numbers (Froude and Reynolds numbers) and hull velocity (i.e., speed at Froude number = 0.42) were also calculated. No variable presented a significant gender effect. Anthropometrics and inertial parameters plus dimensionless numbers increased over time. Swimming efficiency improved between M1 and M3. There was a trend for both passive and active drag increase from M1 to M2, but being lower at M3 than at M1. Intra-individual changes between evaluation moments suggest high between- and within-subject variations. Therefore, hydrodynamic changes over a season occur in a non-linear fashion way, where the interplay between growth and training periodization explain the unique path flow selected by each young swimmer.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1111/sms.12281pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/9307
dc.language.isoengpt_PT
dc.subjectAdolescentpt_PT
dc.subjectAthletic Performancept_PT
dc.subjectBiomechanical Phenomenapt_PT
dc.subjectChildpt_PT
dc.subjectFemalept_PT
dc.subjectHumanspt_PT
dc.subjectLongitudinal Studiespt_PT
dc.subjectMalept_PT
dc.subjectModels, Biologicalpt_PT
dc.subjectSeasonspt_PT
dc.subjectSwimmingpt_PT
dc.subjectHydrodynamicspt_PT
dc.titleHydrodynamic profile of young swimmers: Changes over a competitive seasonpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPagee196pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPagee184pt_PT
oaire.citation.titleScandinavian Journal of Medicine and Science in Sportspt_PT
oaire.citation.volume25pt_PT
person.familyNameBarbosa
person.familyNameMorais
person.familyNameMARQUES
person.familyNameSilva
person.familyNameMarinho
person.givenNameTiago M.
person.givenNameJorge
person.givenNameMÁRIO
person.givenNameAntónio
person.givenNameSandra
person.identifier.ciencia-id8B11-BDC4-F6FF
person.identifier.ciencia-idAA12-BF58-EE60
person.identifier.ciencia-idEA13-7532-0A6D
person.identifier.ciencia-id8C15-83CB-5566
person.identifier.orcid0000-0001-7071-2116
person.identifier.orcid0000-0002-6885-0648
person.identifier.orcid0000-0002-5812-1580
person.identifier.orcid0000-0001-5790-5116
person.identifier.orcid0000-0003-2013-229X
person.identifier.scopus-author-id10044856400
person.identifier.scopus-author-id24773599000
person.identifier.scopus-author-id13410238400
person.identifier.scopus-author-id55152611000
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationba742ddc-ae48-410f-b1d9-b69494c9eba5
relation.isAuthorOfPublication9ee60fd6-89bc-4fa9-92aa-1c8efb4bbccb
relation.isAuthorOfPublicationb410e6a7-5e97-4946-9f86-260182107ffb
relation.isAuthorOfPublicationf83dec25-3fd3-4490-843d-805a431ee258
relation.isAuthorOfPublication8724a8c9-6e71-48da-a7ac-2957e2dda45b
relation.isAuthorOfPublication.latestForDiscoveryf83dec25-3fd3-4490-843d-805a431ee258

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