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Race Analysis and Determination of Stroke Frequency: Stroke Length Combinations during the 50-M Freestyle Event

2023Journal article Open access
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dc.contributor.authorMorais, J.E.
dc.contributor.authorBarbosa, Tiago M.
dc.contributor.authorBragada, José A.
dc.contributor.authorNevill, Alan M.
dc.contributor.authorMarinho, D.A.
dc.date.accessioned2023-03-24T15:55:59Z
dc.date.available2023-03-24T15:55:59Z
dc.date.issued2023
dc.description.abstractThe aims of this study were to: (1) analyze and compare the stroke kinematics between junior and senior elite male swimmers in every section of the race during the 50-m freestyle event, and; (2) identify stroke frequency (SF)–stroke length (SL) combinations on swim speed independently for junior and senior swimmers in each section of the 50-m freestyle event. Eighty-six junior swim- mers (2019) and 95 seniors (2021) competing in the 50-m long course meter LEN Championships were analyzed. The t-test in- dependent samples (p ≤ 0.05) were used to compare juniors and seniors. The SF and SL combinations on swim speed were ex- plored using three-way ANOVAs. Senior swimmers were signif- icantly faster in the 50-m race than juniors (p < 0.001). Speed presented the largest significant difference (p < 0.001) in section S0-15 m (start until the 15th meter mark) being seniors fastest. Both junior and senior swimmers revealed a significant categori- zation (p < 0.001) by stroke length and stroke frequency in each race section. It was possible to model several SF–SL combina- tions for seniors and juniors in each section. The fastest swim speed in each section, for seniors and juniors independently, was achieved by a SF–SL combination that may not be the fastest SF or the longest SL. Coaches and swimmers must be aware that de- spite the 50-m event being an all-out bout, several SF–SL combi- nations were observed (independently for juniors and seniors), and they differ between race sections.pt_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.; Bragada, José A.; Nevill, Alan M.; Marinho, D.A. (2023). Race Analysis and Determination of Stroke Frequency: Stroke Length Combinations during the 50-M Freestyle Event. Journal of Sports Science and Medicine. ISSN 1303-2968. 22:1, p. 156-165
dc.identifier.doi10.52082/jssm.2023.156pt_PT
dc.identifier.issn1303-2968
dc.identifier.urihttp://hdl.handle.net/10198/28062
dc.language.isoengpt_PT
dc.publisherJournal of Sports Science and Medicinept_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAnalysispt_PT
dc.subjectBiomechanicspt_PT
dc.subjectCompetitionpt_PT
dc.subjectPerformancept_PT
dc.titleRace Analysis and Determination of Stroke Frequency: Stroke Length Combinations during the 50-M Freestyle Eventpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleJournal of Sports Science and Medicinept_PT
person.familyNameMorais
person.familyNameBarbosa
person.familyNameBragada
person.givenNameJ. E.
person.givenNameTiago M.
person.givenNameJosé A.
person.identifier867179
person.identifier.ciencia-idAA12-BF58-EE60
person.identifier.ciencia-id8B11-BDC4-F6FF
person.identifier.ciencia-idEC18-B34C-A1C8
person.identifier.orcid0000-0002-6885-0648
person.identifier.orcid0000-0001-7071-2116
person.identifier.orcid0000-0001-7020-0583
person.identifier.scopus-author-id10044856400
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication80b13e62-254d-4d46-ad90-8b509ab523a8
relation.isAuthorOfPublication941a6f14-cfba-458a-a2e3-0cbd1846cd42
relation.isAuthorOfPublicationd24f0ee1-6174-4249-8e0a-20629d306235
relation.isAuthorOfPublication.latestForDiscovery941a6f14-cfba-458a-a2e3-0cbd1846cd42

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