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Young swimmers’ classification based on performance and biomechanical determinants: determining similarities through cluster analysis

2022Journal article Open access
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dc.contributor.authorMorais, J.E.
dc.contributor.authorBarbosa, Tiago M.
dc.contributor.authorNeiva, Henrique P.
dc.contributor.authorMarques, Mário C.
dc.contributor.authorMarinho, D.A.
dc.date.accessioned2022-07-06T09:24:38Z
dc.date.available2022-07-06T09:24:38Z
dc.date.issued2022
dc.description.abstractThe aim of this article has been to classify swimmers based on kinematics, hydrodynamics, and anthropometrics. Sixty-seven young swimmers made a maximal 25 m front-crawl to measure with a speedometer the swimming velocity (v), speed-fluctuation (dv) and dv normalized to v (dv/v). Another two 25 m bouts with and without carrying a perturbation device were made to estimate active drag coefficient (CDa). Trunk transverse surface area (S) was measured with photogrammetric technique on land and in the hydrodynamic position. Cluster 1 was related to swimmers with a high speed fluctuation (ie, dv and dv/v), cluster 2 with anthropometrics (ie, S) and cluster 3 with a high hydrodynamic profile (ie, CDa). The variable that seems to discriminate better the clusters was the dv/v (F = 53.680; P < .001), followed by the dv (F = 28.506; P < .001), CDa (F = 21.025; P < .001), S (F = 6.297; P < .01) and v (F = 5.375; P = .01). Stepwise discriminant analysis extracted 2 functions: Function 1 was mainly defined by dv/v and S (74.3% of variance), whereas function 2 was mainly defined by C Da (25.7% of variance). It can be concluded that kinematics, hydrodynamics and anthropometrics are determinant domains in which to classify and characterize young swimmers' profilespt_PT
dc.description.sponsorshipThis work is supported by national funds (FCT—Portuguese Foundation for Science and Technology) under the project UIDB/DTP/04045/2020.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMorais, J.E.; Barbosa, Tiago M.; Neiva, Henrique P.; Marques, Mario C.; Marinho, D.A. (2022). Young swimmers’ classification based on performance and biomechanical determinants: determining similarities through cluster analysis. Journal of Applied Biomechanics. ISSN 1065-8483. 30:2, p. 310-315pt_PT
dc.identifier.doi10.1123/mc.2021-0126pt_PT
dc.identifier.issn1065-8483
dc.identifier.urihttp://hdl.handle.net/10198/25616
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherHuman Kinetics Publisherspt_PT
dc.relationUIDB/DTP/04045/2020pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAnthropometricspt_PT
dc.subjectClassificationpt_PT
dc.subjectHydrodynamicspt_PT
dc.subjectKinematicspt_PT
dc.subjectSwimmingpt_PT
dc.titleYoung swimmers’ classification based on performance and biomechanical determinants: determining similarities through cluster analysispt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage315pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage310pt_PT
oaire.citation.titleJournal of Applied Biomechanicspt_PT
oaire.citation.volume30pt_PT
person.familyNameMorais
person.familyNameBarbosa
person.givenNameJorge
person.givenNameTiago M.
person.identifier867179
person.identifier.ciencia-idAA12-BF58-EE60
person.identifier.ciencia-id8B11-BDC4-F6FF
person.identifier.orcid0000-0002-6885-0648
person.identifier.orcid0000-0001-7071-2116
person.identifier.scopus-author-id10044856400
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication80b13e62-254d-4d46-ad90-8b509ab523a8
relation.isAuthorOfPublication941a6f14-cfba-458a-a2e3-0cbd1846cd42
relation.isAuthorOfPublication.latestForDiscovery941a6f14-cfba-458a-a2e3-0cbd1846cd42

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