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Clustering U-14 Portuguese regional team football players by lower limb strength, power, dynamic balance, speed and change of direction: understanding the field position factor

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dc.contributor.authorSampaio, Tatiana
dc.contributor.authorMarinho, D.A.
dc.contributor.authorTeixeira, José Eduardo
dc.contributor.authorOliveira, João P.
dc.contributor.authorMorais, J.E.
dc.date.accessioned2023-09-06T10:28:11Z
dc.date.available2023-09-06T10:28:11Z
dc.date.issued2023
dc.description.abstractThe aim of this study was to cluster U-14 Portuguese regional team football players based on variables related to lower limb strength and power, dynamic balance, linear sprint, and change of direction. Method: The sample consisted of 22 young male soccer players (13.83 ± 0.44 years). A set of variables related to lower limb strength and power, dynamic balance, linear sprint, and change of direction was measured. Results: Overall, a non-significant field position was observed. The countermovement jump (p < 0.001, η2 = 0.73), squat jump (p < 0.001), and 30 m linear sprint (p = 0.001) were the main variables responsible for establishing the clusters. Cluster 1 was characterized by a high slalom, i.e., it took longer to complete the test (speed and change of direction) and a low composite score in the dynamic balance. Cluster 2 was characterized by high squat jump, countermovement jump, and reactive strength ratio (lower limb strength and power). Cluster 3 was characterized by low squat jump and countermovement jump (lower limb strength and power), and a high 30 m sprint, i.e., it took longer to complete the test (speed and change of direction). Based on the results of the territorial map, the clusters consisted of: (i) cluster 1: two forwards, one midfielder, and five defenders; (ii) cluster 2: three forwards, two midfielders, and two defenders, and; (iii) cluster 3: four midfielders and three defenders. Conclusions: Players from different field positions composed the three clusters. There was no cluster composed exclusively of players of the same field position. The development of individualized and specific enrichment training programs should consider a cluster analysis, as the positional effect can be overlooked.pt_PT
dc.description.sponsorshipThe authors received funding from the FCT—Portuguese Foundation for Science and Technology under the project UIBD/DTP/04045/2020. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The following grant information was disclosed by the authors: FCT—Portuguese Foundation for Science and Technology: UIBD/DTP/04045/2020pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSampaio, Tatiana; Marinho, D.A.; Teixeira, José Eduardo; Oliveira, João P.; Morais, J.E. (2023). Clustering U-14 Portuguese regional team football players by lower limb strength, power, dynamic balance, speed and change of direction: understanding the field position factor. PeerJ. ISSN 2167-8359. 11, p. 1-15pt_PT
dc.identifier.doi10.7717/peerj.15609pt_PT
dc.identifier.issn2167-8359
dc.identifier.urihttp://hdl.handle.net/10198/28708
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherPeerJ Inc.pt_PT
dc.relationResearch Center in Sports Sciences, Health and Human Development
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectYoung playerspt_PT
dc.subjectAssessmentpt_PT
dc.subjectRegional-levelpt_PT
dc.subjectFootballpt_PT
dc.subjectDeterminantspt_PT
dc.subjectResearch Subject Categories::INTERDISCIPLINARY RESEARCH AREAS::Sportspt_PT
dc.titleClustering U-14 Portuguese regional team football players by lower limb strength, power, dynamic balance, speed and change of direction: understanding the field position factorpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleResearch Center in Sports Sciences, Health and Human Development
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04045%2F2020/PT
oaire.citation.endPage15pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titlePeerJpt_PT
oaire.citation.volume11pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameSampaio
person.familyNameTeixeira
person.familyNameMorais
person.givenNameTatiana
person.givenNameJosé Eduardo
person.givenNameJ.E.
person.identifier867179
person.identifier.ciencia-idD11C-9591-7A8A
person.identifier.ciencia-idAA12-BF58-EE60
person.identifier.orcid0000-0001-8548-2907
person.identifier.orcid0000-0003-4612-3623
person.identifier.orcid0000-0002-6885-0648
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication04e290ae-a93f-4d0b-a577-badc8e1067af
relation.isAuthorOfPublication79042f92-ce53-4b79-a33f-76ac63c55b8d
relation.isAuthorOfPublication80b13e62-254d-4d46-ad90-8b509ab523a8
relation.isAuthorOfPublication.latestForDiscovery79042f92-ce53-4b79-a33f-76ac63c55b8d
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