Profiling of elite male junior 50 m freestyle sprinters: understanding the speed‐time relationship

Morais, J.E.; Barbosa, Tiago M.; Silva, A.J.; Veiga, Santiago; Marinho, D.A.

Publication

Profiling of elite male junior 50 m freestyle sprinters: understanding the speed‐time relationship

2022Journal article

dc.contributor.author	Morais, J.E.
dc.contributor.author	Barbosa, Tiago M.
dc.contributor.author	Silva, A.J.
dc.contributor.author	Veiga, Santiago
dc.contributor.author	Marinho, D.A.
dc.date.accessioned	2024-01-30T10:15:56Z
dc.date.available	2024-01-30T10:15:56Z
dc.date.issued	2022
dc.description.abstract	The aim of this study was to (1) analyze and compare the race performance and stability between the fastest and slowest male swimmers during the 50 m freestyle event, and (2) to understand the speed-time relationship in this race. The performances (start, clean swim, and finish) of 86 swimmers (divided into two tiers: best and poorest performances) who competed in the 50 m freestyle event in the 2019 long course LEN European Junior Championships were analyzed. The swimming speed presented a significant difference between the groups (tier #1 vs tier #2) in all sections of the race, in which the start (S0–15 m: p < 0.001, d = 1.64) and finish sections (S45-50: p < 0.001, d = 1.63) showed the greatest differences. Significant variances over the race sections were noted for both groups in all variables, in which the swimming speed was the variable with the highest variance (tier #1: p < 0.001, η2 = 0.72; tier #2: p < 0.001, η2 = 0.82). Both groups exhibited a similar normative stability, with the fastest swimmers tending to be the best in all sections. The fit analysis produced a cubic speed-time relationship. Notwithstanding, junior swimmers who raced the 50 m freestyle can be considered to have an all-out pacing. This information is of paramount importance for coaches and swimmers to understand the intra-lap race performance in this short event.	pt_PT
dc.description.sponsorship	To LEN and Spiideo AB for providing the video clips. This work is supported by national funds (FCT—Portuguese Foundation for Science and Technology) under the project UIDB/DTP/04045/2020.	pt_PT
dc.description.version	info:eu-repo/semantics/publishedVersion	pt_PT
dc.identifier.citation	Morais, J.E.; Barbosa, Tiago M.; Silva, A.J.; Veiga, Santiago; Marinho, Daniel A. (2022). Profiling of elite male junior 50 m freestyle sprinters: understanding the speed‐time relationship. Scandinavian Journal of Medicine & Science in Sports. ISSN 0905-7188. 32:1, p. 60-68	pt_PT
dc.identifier.doi	10.1111/sms.14058	pt_PT
dc.identifier.eissn	1600-0838
dc.identifier.issn	0905-7188
dc.identifier.uri	http://hdl.handle.net/10198/29382
dc.language.iso	eng	pt_PT
dc.peerreviewed	yes	pt_PT
dc.publisher	Wiley-Blackwell	pt_PT
dc.relation	Research Center in Sports Sciences, Health and Human Development
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	pt_PT
dc.subject	Curve fitting	pt_PT
dc.subject	Performance	pt_PT
dc.subject	Race analysis	pt_PT
dc.subject	Swimming	pt_PT
dc.title	Profiling of elite male junior 50 m freestyle sprinters: understanding the speed‐time relationship	pt_PT
dc.type	journal article
dspace.entity.type	Publication
oaire.awardTitle	Research Center in Sports Sciences, Health and Human Development
oaire.awardURI	info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04045%2F2020/PT
oaire.citation.endPage	68	pt_PT
oaire.citation.issue	1	pt_PT
oaire.citation.startPage	60	pt_PT
oaire.citation.title	Scandinavian Journal of Medicine & Science in Sports	pt_PT
oaire.citation.volume	32	pt_PT
oaire.fundingStream	6817 - DCRRNI ID
person.familyName	Morais
person.familyName	Barbosa
person.givenName	J.E.
person.givenName	Tiago M.
person.identifier	867179
person.identifier.ciencia-id	AA12-BF58-EE60
person.identifier.ciencia-id	8B11-BDC4-F6FF
person.identifier.orcid	0000-0002-6885-0648
person.identifier.orcid	0000-0001-7071-2116
person.identifier.scopus-author-id	10044856400
project.funder.identifier	http://doi.org/10.13039/501100001871
project.funder.name	Fundação para a Ciência e a Tecnologia
rcaap.rights	restrictedAccess	pt_PT
rcaap.type	article	pt_PT
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