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Swimming propulsion forces are enhanced by a small finger spread

2010-02Journal article Open access
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dc.contributor.authorMarinho, Daniel
dc.contributor.authorBarbosa, Tiago M.
dc.contributor.authorReis, Victor M
dc.contributor.authorKjendlie, Per L
dc.contributor.authorAlves, Francisco
dc.contributor.authorVilas Boas, J. Paulo
dc.contributor.authorMachado, Leandro
dc.contributor.authorSilva, António
dc.contributor.authorRouboa, Abel I
dc.date.accessioned2020-02-27T16:41:30Z
dc.date.available2020-02-27T16:41:30Z
dc.date.issued2010-02
dc.description.abstractThe main aim of this study was to investigate the effect of finger spread on the propulsive force production in swimming using computational fluid dynamics. Computer tomography scans of an Olympic swimmer hand were conducted. This procedure involved three models of the hand with differing finger spreads: fingers closed together (no spread), fingers with a small (0.32 cm) spread, and fingers with large (0.64 cm) spread. Steady-state computational fluid dynamics analyses were performed using the Fluent code. The measured forces on the hand models were decomposed into drag and lift coefficients. For hand models, angles of attack of 0 degrees, 15 degrees, 30 degrees, 45 degrees, 60 degrees, 75 degrees, and 90 degrees, with a sweep back angle of 0 degrees, were used for the calculations. The results showed that the model with a small spread between fingers presented higher values of drag coefficient than did the models with fingers closed and fingers with a large spread. One can note that the drag coefficient presented the highest values for an attack angle of 90 degrees in the three hand models. The lift coefficient resembled a sinusoidal curve across the attack angle. The values for the lift coefficient presented few differences among the three models, for a given attack angle. These results suggested that fingers slightly spread could allow the hand to create more propulsive force during swimming.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1123/jab.26.1.87pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/9605
dc.language.isoengpt_PT
dc.subjectBiomechanical Phenomenapt_PT
dc.subjectCompetitive Behaviorpt_PT
dc.subjectComputer Simulationpt_PT
dc.subjectFingerspt_PT
dc.subjectHandpt_PT
dc.subjectHumanspt_PT
dc.subjectImage Processing Computer-Assistedpt_PT
dc.subjectRheologypt_PT
dc.subjectSwimmingpt_PT
dc.subjectTomography X-Ray Computedpt_PT
dc.subjectAccelerationpt_PT
dc.titleSwimming propulsion forces are enhanced by a small finger spreadpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage92pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage87pt_PT
oaire.citation.titleJournal of Applied Biomechanicspt_PT
oaire.citation.volume26pt_PT
person.familyNameMarinho
person.familyNameBarbosa
person.familyNameBessone Ferreira Alves
person.familyNameVilas-Boas
person.familyNameMachado
person.familyNameSilva
person.familyNameRouboa
person.givenNameDaniel
person.givenNameTiago M.
person.givenNameFrancisco José
person.givenNameJ. Paulo
person.givenNameLeandro
person.givenNameAntónio
person.givenNameAbel
person.identifier497179
person.identifierR-000-92N
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person.identifier.ciencia-id8C15-83CB-5566
person.identifier.ciencia-idA31F-03A9-5CD3
person.identifier.orcid0000-0003-2351-3047
person.identifier.orcid0000-0001-7071-2116
person.identifier.orcid0000-0002-4996-1414
person.identifier.orcid0000-0002-1317-155X
person.identifier.orcid0000-0002-4109-2939
person.identifier.orcid0000-0001-5332-5974
person.identifier.orcid0000-0001-5790-5116
person.identifier.orcid0000-0003-2652-8789
person.identifier.scopus-author-id15022568500
person.identifier.scopus-author-id10044856400
person.identifier.scopus-author-id26424846800
person.identifier.scopus-author-id7102866127
person.identifier.scopus-author-id13410238400
person.identifier.scopus-author-id6603461700
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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