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Characterization of speed fluctuation and drag force in young swimmers: A gender comparison

2013Journal article Open access
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dc.contributor.authorBarbosa, Tiago M.
dc.contributor.authorCosta, Mário Jorge
dc.contributor.authorMorais, Jorge
dc.contributor.authorMorouço, Pedro
dc.contributor.authorMoreira, Marc
dc.contributor.authorGarrido, Nuno
dc.contributor.authorMarinho, Daniel
dc.contributor.authorSilva, António
dc.date.accessioned2020-02-20T11:45:28Z
dc.date.available2020-02-20T11:45:28Z
dc.date.issued2013
dc.description.abstractThe aim of this study was to compare the speed fluctuation and the drag force in young swimmers between genders. Twenty-three young pubertal swimmers (12 boys and 11 girls) volunteered as subjects. Speed fluctuation was measured using a kinematical mechanical method (i.e., speedo-meter) during a maximal 25-m front crawl bout. Active drag, active drag coefficient and power needed to overcome drag were measured with the velocity perturbation method for another two maximal 25m front crawl bouts with and without the perturbation device. Passive drag and the passive drag coefficient were estimated using the gliding decay velocity method after a maximal push-off from the wall while being fully immersed. The technique drag index was also assessed as a ratio between active and passive drag. Boys presented meaningfully higher speed fluctuation, active drag, power needed to overcome drag and technique drag index than the girls. There were no significant gender differences for active drag coefficient, passive drag and passive drag coefficient. There were positive and moderate-strong associations between active drag and speed fluctuation when controlling the effects of swim velocity. So, increasing speed fluctuation leads to higher drag force values and those are even higher for boys than for girls.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.humov.2012.07.009pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/9416
dc.language.isoengpt_PT
dc.subjectAdolescentpt_PT
dc.subjectBiomechanical Phenomenapt_PT
dc.subjectChildpt_PT
dc.subjectCompetitive Behaviorpt_PT
dc.subjectFemalept_PT
dc.subjectHumanspt_PT
dc.subjectMalept_PT
dc.subjectPhotogrammetrypt_PT
dc.subjectPhysical Exertionpt_PT
dc.subjectSwimmingpt_PT
dc.subjectHydrodynamicspt_PT
dc.subjectSex Characteristicspt_PT
dc.titleCharacterization of speed fluctuation and drag force in young swimmers: A gender comparisonpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1225pt_PT
oaire.citation.issue6pt_PT
oaire.citation.startPage1214pt_PT
oaire.citation.titleHuman Movement Sciencept_PT
oaire.citation.volume32pt_PT
person.familyNameBarbosa
person.familyNameCosta
person.familyNameMorais
person.familyNameFrade Morouço
person.familyNameGarrido
person.familyNameMarinho
person.familyNameSilva
person.givenNameTiago M.
person.givenNameMário Jorge
person.givenNameJorge
person.givenNamePedro Gil
person.givenNameNuno Miguel de Figueiredo
person.givenNameDaniel
person.givenNameAntónio
person.identifier1007580
person.identifierhttps://scholar.google.com/citations?user=0B3tQQcAAAAJ&hl=en&authuser=2
person.identifier.ciencia-id8B11-BDC4-F6FF
person.identifier.ciencia-idC210-1290-9402
person.identifier.ciencia-idAA12-BF58-EE60
person.identifier.ciencia-idF619-3996-742A
person.identifier.ciencia-id3711-341B-A441
person.identifier.ciencia-id471B-F3CC-479A
person.identifier.ciencia-id8C15-83CB-5566
person.identifier.orcid0000-0001-7071-2116
person.identifier.orcid0000-0001-5502-1202
person.identifier.orcid0000-0002-6885-0648
person.identifier.orcid0000-0001-7404-6923
person.identifier.orcid0000-0003-2351-3047
person.identifier.orcid0000-0001-5790-5116
person.identifier.scopus-author-id10044856400
person.identifier.scopus-author-id35730781900
person.identifier.scopus-author-idhttps://www.scopus.com/authid/detail.uri?authorId=53866322700
person.identifier.scopus-author-id15022568500
person.identifier.scopus-author-id13410238400
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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