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Understanding the role of propulsion in the prediction of front-crawl swimming velocity and in the relationship between stroke frequency and stroke length

dc.contributor.authorMorais, J.E.
dc.contributor.authorBarbosa, Tiago M.
dc.contributor.authorNevill, Alan M.
dc.contributor.authorCobley, Stephen
dc.contributor.authorMarinho, D.A.
dc.date.accessioned2022-05-23T16:04:25Z
dc.date.available2022-05-23T16:04:25Z
dc.date.issued2022
dc.description.abstractIntroduction: This study aimed to: 1) determine swimming velocity based on a set of anthropometric, kinematic, and kinetic variables, and; 2) understand the stroke frequency (SF)-stroke length (SL) combinations associated with swimming velocity and propulsion in young sprint swimmers.Methods: 38 swimmers (22 males: 15.92 +/- 0.75 years; 16 females: 14.99 +/- 1.06 years) participated and underwent anthropometric, kinematic, and kinetic variables assessment. Exploratory associations between SL and SF on swimming velocity were explored using two two-way ANOVA (independent for males and females). Swimming velocity was determined using multilevel modeling.Results: The prediction of swimming velocity revealed a significant sex effect. Height, underwater stroke time, and mean propulsion of the dominant limb were predictors of swimming velocity. For both sexes, swimming velocity suggested that SL presented a significant variation (males: F = 8.20, p < 0.001, eta(2) = 0.40; females: F = 18.23, p < 0.001, eta(2) = 0.39), as well as SF (males: F = 38.20, p < 0.001, eta(2) = 0.47; females: F = 83.04, p < 0.001, eta(2) = 0.51). The interaction between SL and SF was significant for females (F = 8.00, p = 0.001, eta(2) = 0.05), but not for males (F = 1.60, p = 0.172, eta(2) = 0.04). The optimal SF-SL combination suggested a SF of 0.80 Hz and a SL of 2.20 m (swimming velocity: 1.75 m s(-1)), and a SF of 0.80 Hz and a SL of 1.90 m (swimming velocity: 1.56 m s(-1)) for males and females, respectively. The propulsion in both sexes showed the same trend in SL, but not in SF (i.e., non-significant variation). Also, a non-significant interaction between SL and SF was observed (males: F = 0.77, p = 0.601, eta(2) = 0.05; females: F = 1.48, p = 0.242, eta(2) = 0.05).Conclusion: Swimming velocity was predicted by an interaction of anthropometrics, kinematics, and kinetics. Faster velocities in young sprinters of both sexes were achieved by an optimal combination of SF-SL. The same trend was shown by the propulsion data. The highest propulsion was not necessarily associated with higher velocity achievementpt_PT
dc.description.sponsorshipThis work is supported by national funds (FCT -Portuguese Foundation for Science and Technology) under the project UIBD/DTP/04045/2020.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMorais, J.E.; Barbosa, Tiago M.; Nevill, Alan M.; Cobley, Stephen; Marinho, D.A. (2022). Understanding the role of propulsion in the prediction of front-crawl swimming velocity and in the relationship between stroke frequency and stroke length. Frontiers in Physiology. ISSN 1664-042X. 13, p. 1-11pt_PT
dc.identifier.doi10.3389/fphys.2022.876838pt_PT
dc.identifier.issn1664-042X
dc.identifier.urihttp://hdl.handle.net/10198/25518
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontiers Mediapt_PT
dc.relationUIBD/DTP/04045/2020pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectYouthpt_PT
dc.subjectSwimmingpt_PT
dc.subjectTechniquept_PT
dc.subjectPerformancept_PT
dc.subjectStroke parameterspt_PT
dc.titleUnderstanding the role of propulsion in the prediction of front-crawl swimming velocity and in the relationship between stroke frequency and stroke lengthpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage11pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleFrontiers in Physiologypt_PT
oaire.citation.volume13pt_PT
person.familyNameMorais
person.familyNameBarbosa
person.givenNameJ. E.
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.latestForDiscovery80b13e62-254d-4d46-ad90-8b509ab523a8

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