Repository logo
 
Publication

Hydrodynamic analysis of different finger positions in swimming: a computational fluid dynamics approach

2015-02Journal article Open access
Simple item page
dc.contributor.authorVilas Boas, J. Paulo
dc.contributor.authorRamos, Rui J.
dc.contributor.authorFernandes, Ricardo J.
dc.contributor.authorSilva, António
dc.contributor.authorRouboa, Abel I
dc.contributor.authorMachado, Leandro
dc.contributor.authorBarbosa, Tiago M.
dc.contributor.authorMarinho, Daniel
dc.date.accessioned2020-02-18T11:25:25Z
dc.date.available2020-02-18T11:25:25Z
dc.date.issued2015-02
dc.description.abstractThe aim of this research was to numerically clarify the effect of finger spreading and thumb abduction on the hydrodynamic force generated by the hand and forearm during swimming. A computational fluid dynamics (CFD) analysis of a realistic hand and forearm model obtained using a computer tomography scanner was conducted. A mean flow speed of 2 m · s(-1) was used to analyze the possible combinations of three finger positions (grouped, partially spread, totally spread), three thumb positions (adducted, partially abducted, totally abducted), three angles of attack (a = 0°, 45°, 90°), and four sweepback angles (y = 0°, 90°, 180°, 270°) to yield a total of 108 simulated situations. The values of the drag coefficient were observed to increase with the angle of attack for all sweepback angles and finger and thumb positions. For y = 0° and 180°, the model with the thumb adducted and with the little finger spread presented higher drag coefficient values for a = 45° and 90°. Lift coefficient values were observed to be very low at a = 0° and 90° for all of the sweepback angles and finger and thumb positions studied, although very similar values are obtained at a = 45°. For y = 0° and 180°, the effect of finger and thumb positions appears to be much most distinct, indicating that having the thumb slightly abducted and the fingers grouped is a preferable position at y = 180°, whereas at y = 0°, having the thumb adducted and fingers slightly spread yielded higher lift values. Results show that finger and thumb positioning in swimming is a determinant of the propulsive force produced during swimming; indeed, this force is dependent on the direction of the flow over the hand and forearm, which changes across the arm's stroke.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1123/jab.2013-0296pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/9302
dc.language.isoengpt_PT
dc.subjectAdultpt_PT
dc.subjectAthletic Performancept_PT
dc.subjectFingerspt_PT
dc.subjectForearmpt_PT
dc.subjectHumanspt_PT
dc.subjectHydrodynamicspt_PT
dc.subjectModels Biologicalpt_PT
dc.subjectSwimmingpt_PT
dc.subjectThumbpt_PT
dc.titleHydrodynamic analysis of different finger positions in swimming: a computational fluid dynamics approachpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FDES%2F098532%2F2008/PT
oaire.citation.issue1pt_PT
oaire.citation.startPage48-55pt_PT
oaire.citation.titleJournal of Applied Biomechanicspt_PT
oaire.citation.volume31pt_PT
oaire.fundingStream5876-PPCDTI
person.familyNameVilas-Boas
person.familyNameFernandes
person.familyNameSilva
person.familyNameRouboa
person.familyNameMachado
person.familyNameBarbosa
person.familyNameMarinho
person.givenNameJ. Paulo
person.givenNameRicardo J.
person.givenNameAntónio
person.givenNameAbel
person.givenNameLeandro
person.givenNameTiago M.
person.givenNameDaniel
person.identifier497179
person.identifierR-000-92N
person.identifier.ciencia-id0D18-D46F-09A1
person.identifier.ciencia-idE418-C265-2D21
person.identifier.ciencia-id8C15-83CB-5566
person.identifier.ciencia-idA31F-03A9-5CD3
person.identifier.ciencia-id7E17-6B94-5441
person.identifier.ciencia-id8B11-BDC4-F6FF
person.identifier.ciencia-id471B-F3CC-479A
person.identifier.orcid0000-0002-4109-2939
person.identifier.orcid0000-0002-5811-0443
person.identifier.orcid0000-0001-5790-5116
person.identifier.orcid0000-0003-2652-8789
person.identifier.orcid0000-0001-5332-5974
person.identifier.orcid0000-0001-7071-2116
person.identifier.orcid0000-0003-2351-3047
person.identifier.scopus-author-id26424846800
person.identifier.scopus-author-id13410238400
person.identifier.scopus-author-id6603461700
person.identifier.scopus-author-id7102866127
person.identifier.scopus-author-id10044856400
person.identifier.scopus-author-id15022568500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication66d9e3f3-ab73-45ef-b401-571284df3553
relation.isAuthorOfPublication8b17476e-a538-478e-8898-724a12aad07f
relation.isAuthorOfPublicatione2a64a7b-a6b0-434a-b3d7-72f41b9f3866
relation.isAuthorOfPublicationf83dec25-3fd3-4490-843d-805a431ee258
relation.isAuthorOfPublication1211756e-e062-4071-ba79-d81a97be62e7
relation.isAuthorOfPublication2ef6c423-d9ae-4e90-8c96-307ce18f596a
relation.isAuthorOfPublicationba742ddc-ae48-410f-b1d9-b69494c9eba5
relation.isAuthorOfPublication1b7a1cda-cf15-4686-bb08-1ac47b66b314
relation.isAuthorOfPublication.latestForDiscovery66d9e3f3-ab73-45ef-b401-571284df3553
relation.isProjectOfPublication4d3068bd-931d-4d9a-92ed-3b8acd4368c2
relation.isProjectOfPublication.latestForDiscovery4d3068bd-931d-4d9a-92ed-3b8acd4368c2

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
50 - vilas-boas2015.pdf
Size:
603.94 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

FCSH - DCD | Documentos por Auto-Depósito
ICI - CIDESD-UBI | Documentos por Auto-Depósito