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The transfer of strength and power into the stroke biomechanics of young swimmers over a 34-week period

2018Journal article Open access
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dc.contributor.authorMorais, J.E.
dc.contributor.authorSilva, A.J.
dc.contributor.authorGarrido, Nuno D.
dc.contributor.authorMarinho, D.A.
dc.contributor.authorBarbosa, Tiago M.
dc.date.accessioned2018-08-08T10:52:56Z
dc.date.available2018-08-08T10:52:56Z
dc.date.issued2018
dc.description.abstractThe purpose of this study was to learn the interplay between dry-land strength and conditioning, and stroke biomechanics in young swimmers, during a 34-week training programme. Twenty-seven swimmers (overall: 13.33 ± 0.85 years old; 11 boys: 13.5 ± 0.75 years old; 16 girls: 13.2 ± 0.92 years old) competing at regional- and national-level competitions were evaluated. The swimmers were submitted to a specific in-water and dry-land strength training over 34 weeks (and evaluated at three time points: pre-, mid-, and post-test; M1, M2, and M3, respectively). The 100-m freestyle performance was chosen as the main outcome (i.e. dependent variable). The arm span (AS; anthropometrics), throwing velocity (TV; strength), stroke length (SL), and stroke frequency (SF; kinematics) were selected as independent variables. There was a performance enhancement over time (M1 vs. M3: 68.72 ± 5.57 s, 66.23 ± 5.23 s; Δ = -3.77%; 95% CI: -3.98;-3.56) and an overall improvement of the remaining variables. At M1 and M2, all links between variables presented significant effects (p < .001), except the TV-SL and the TV-SF path. At M3, all links between variables presented significant effects (p ≤ .05). Between M1 and M3, the direct effect of the TV to the stroke biomechanics parameters (SL and SF) increased. The model predicted 89%, 88%, and 92% of the performance at M1, M2, and M3, respectively, with a reasonable adjustment (i.e. goodness-of-fit M1: χ2/df = 3.82; M2: χ2/df = 3.08; M3: χ2/df = 4.94). These findings show that strength and conditioning parameters have a direct effect on the stroke biomechanics, and the latter one on the swimming performance.pt_PT
dc.description.sponsorshipWe would like to thank the support of the University of Beira Interior and SantanderUniversities (Bolsa BIPD/ ICI-FCSH-Santander Universidades-UBI/2017)
dc.description.versioninfo:eu-repo/semantics/acceptedVersionpt_PT
dc.identifier.citationMorais, J.E.; Silva, A.J.; Garrido, N.; Marinho, D.A.; Barbosa, Tiago M. (2018). The transfer of strength and power into the stroke biomechanics of young swimmers over a 34-week period. European Journal of Sport Science. ISSN 1746-1391. 18:6, p. 787-795pt_PT
dc.identifier.doi10.1080/17461391.2018.1453869pt_PT
dc.identifier.issn1746-1391
dc.identifier.urihttp://hdl.handle.net/10198/17933
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherTaylor & Francispt_PT
dc.relationBIPD/ICI-FCSH-Santander Universidades-UBI/2017
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectTrainingpt_PT
dc.subjectPerformancept_PT
dc.subjectBiomechanicspt_PT
dc.titleThe transfer of strength and power into the stroke biomechanics of young swimmers over a 34-week periodpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage795pt_PT
oaire.citation.startPage787pt_PT
oaire.citation.titleEuropean Journal of Sport Sciencept_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.latestForDiscovery80b13e62-254d-4d46-ad90-8b509ab523a8

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