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Comparison of force variables and dynamic strength index between age groups in elite young Brazilian football goalkeepers

2024Journal article Open access
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dc.contributor.authorPortella, Daniel Leite
dc.contributor.authorJatene, Pedro
dc.contributor.authorSilva, Alex O.
dc.contributor.authorSantos, Gustavo S.
dc.contributor.authorMonteiro, Diogo
dc.contributor.authorTeixeira, José Eduardo
dc.contributor.authorBranquinho, Luís
dc.contributor.authorFerraz, Ricardo
dc.contributor.authorForte, Pedro
dc.date.accessioned2024-05-03T15:33:24Z
dc.date.available2024-05-03T15:33:24Z
dc.date.issued2024
dc.description.abstractThe application of muscle force is a determinant of football success as it is inherent to the motor control and sport. The aims of this study are: (1) to describe force variables Isometric Maximal Force (IMF), Concentric Peak Force (CPPF), and Dynamic Strength Index (DSI) in football goalkeepers from different age groups; (2) to compare these variables' behavior between those groups. Methods The sample was formed by 19 youth players (15.97 +/- 1.55 years old) from a first-division Brazilian football team. The CPPF and IMF variables were obtained through the Countermovement jump and isometric squat tests, respectively. For data collection, a force plate (Cefise, Brazil) was used with an acquisition frequency of 600 Hz and mono-axial. The DSI was calculated using the ratio between CPPF and IMF. For data analysis, the sample was separated into clusters by age. After the grouping, a descriptive analysis of the data and a comparison between the groups with p < 0.05. Results The sample was grouped into three groups (GA, GB, and GC) and one of the individuals did not enter the group, totaling 18 individuals in the analyzed sample. The comparison between the ages of the groups showed a significant difference and small and moderate effect size (ES), validating the cluster strategy. The CPPF and IMF variables showed increased values according to chronological age. CPPF showed a significant difference between GA-GB, (ES = very large) GA-GC (ES = very large), and GB-GC (ES = moderate). The IMF variable had significant differences between GA-GB (ES = moderate) and GA-GC (ES = very large). However, DSI showed significant differences only between GA GB (ES = small) and GB-GC (ES = very large). Conclusions The CPPF and IMF variables had constant increases and distinct values with an increase according to age, and this did not occur for DSI. The difference between CPPF and IMF compared to DSI bring to light the variability in dynamics and proportionality between muscular force in the concentric phase and maximal force in the isometric regime during the developmental process over chronological age in soccer goalkeepers.pt_PT
dc.description.sponsorshipThis work is supported by national funds (FCT—Portuguese Foundation for Science and Technology) under the project UIBD/DTP/04045/2020.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPortella, Daniel Leite; Jatene, Pedro; Silva, Alex O.; Santos, Gustavo S.; Monteiro, Diogo; Teixeira, José Eduardo; Branquinho, Luís; Ferraz, Ricardo; Forte, Pedro (2024). Comparison of force variables and dynamic strength index between age groups in elite young Brazilian football goalkeepers. Frontiers in Sports and Active Living. EISSN 2624-9367. 6, p. 1-7pt_PT
dc.identifier.doi10.3389/fspor.2024.1282214pt_PT
dc.identifier.eissn2624-9367
dc.identifier.urihttp://hdl.handle.net/10198/29713
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontierspt_PT
dc.relationResearch Center in Sports Sciences, Health and Human Development
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectYouthpt_PT
dc.subjectForcept_PT
dc.subjectCountermovement jumppt_PT
dc.subjectGoalkeeperpt_PT
dc.subjectSoccerpt_PT
dc.titleComparison of force variables and dynamic strength index between age groups in elite young Brazilian football goalkeeperspt_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.endPage7pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleFrontiers in Sports and Active Livingpt_PT
oaire.citation.volume6pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameTeixeira
person.familyNameForte
person.givenNameJosé Eduardo
person.givenNamePedro
person.identifier.ciencia-idD11C-9591-7A8A
person.identifier.ciencia-id351B-B16B-79C7
person.identifier.orcid0000-0003-4612-3623
person.identifier.orcid0000-0003-0184-6780
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication79042f92-ce53-4b79-a33f-76ac63c55b8d
relation.isAuthorOfPublication3ecc6d1b-07a4-40d7-81f4-df6fd7b3d5b0
relation.isAuthorOfPublication.latestForDiscovery3ecc6d1b-07a4-40d7-81f4-df6fd7b3d5b0
relation.isProjectOfPublicationb305d97a-cacc-41ea-9c2b-e6554b5ee167
relation.isProjectOfPublication.latestForDiscoveryb305d97a-cacc-41ea-9c2b-e6554b5ee167

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