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Effect of additional buoyancy swimsuits on performance of competitive swimmers

2021Artigo científico Acesso aberto
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dc.contributor.authorMoriyama, Shin-Ichiro
dc.contributor.authorWatanabe, Yasunori
dc.contributor.authorKurono, Tsubasa
dc.contributor.authorMorais, J.E.
dc.contributor.authorMarinho, D.A.
dc.contributor.authorWakayoshi, Kohji
dc.date.accessioned2022-02-14T10:50:12Z
dc.date.available2022-02-14T10:50:12Z
dc.date.issued2021
dc.description.abstractWhen in water, the Centers of Buoyancy (CoB) and Mass (CoM) of the human body are positioned cranially and caudally, respectively. With increasing distance between these centers, the sinking torque of the lower limbs increases, with a subsequent decrease in swimming performance due to increased drag. Objective: To clarify the effect of additional buoyancy swimsuits on swimming performance. Methods: The subjects were eight competitive male swimmers of mean ±SD age 21±2 years. Swimming performance was compared between Conventional (CS) and Additional Buoyancy Swimsuits (ABS). CoM and CoB were identified on land and in water, respectively, with the swimmers maintaining a horizontal posture. CoM was measured by the reaction board method. CoB was calculated as the force exerted in the vertical direction accompanied by changes in inspiratory volume. Swimming velocity and Blood Lactate (BL) concentration value during 200 m front crawl in trials at four different speeds (curve test) were recorded as swimming performance. Results: No significant difference in inspiratory volume was observed between CS and ABS (small effect size, d=0.28). The distance between CoM and CoB was significantly shorter for CS than ABS (p < 0.001; large effect size, d=1.08). Both swimming velocity at BL of 4 mmol·L-1 and maximal effort were significantly faster for ABS (p < 0.042; 0.008), with large effect size (d=0.91; 0.98). However, there was no significant difference in maximal BL between CS and ABS (small effect size, d=0.37).pt_PT
dc.description.sponsorshipThis work is supported by the JSPS KAKENHI, grant number 16K01713pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMoriyama, Shin-Ichiro; Watanabe, Yasunori; Kurono, Tsubasa; Morais, J.E.; Marinho, D.A.; Wakayoshi, Kohji (2021). Effect of additional buoyancy swimsuits on performance of competitive swimmers. Open Sports Sciences Journal. ISSN 1875-399X, 14:1, p. 98-105pt_PT
dc.identifier.doi10.2174/1875399X02114010098pt_PT
dc.identifier.issn1875-399X
dc.identifier.urihttp://hdl.handle.net/10198/25055
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherBentham Science Publisherspt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectSwimming velocitypt_PT
dc.subjectHorizontal posturept_PT
dc.subjectBlood lactatept_PT
dc.subjectCenter of masspt_PT
dc.subjectCenter of buoyancypt_PT
dc.subjectWater resistancept_PT
dc.titleEffect of additional buoyancy swimsuits on performance of competitive swimmerspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage105pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage98pt_PT
oaire.citation.titleOpen Sports Sciences Journalpt_PT
oaire.citation.volume14pt_PT
person.familyNameMorais
person.givenNameJ.E.
person.identifier867179
person.identifier.ciencia-idAA12-BF58-EE60
person.identifier.orcid0000-0002-6885-0648
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication80b13e62-254d-4d46-ad90-8b509ab523a8
relation.isAuthorOfPublication.latestForDiscovery80b13e62-254d-4d46-ad90-8b509ab523a8

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