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Key determinants of time to 5 m in different ventral swimming start techniques

2018Journal article Restricted access
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dc.contributor.authorPeterson Silveira, Ricardo
dc.contributor.authorStergiou, Pro
dc.contributor.authorFigueiredo, Pedro
dc.contributor.authorCastro, Flávio de S.
dc.contributor.authorKatz, Larry
dc.contributor.authorStefanyshyn, Darren J.
dc.date.accessioned2021-04-29T15:52:51Z
dc.date.available2021-04-29T15:52:51Z
dc.date.issued2018
dc.description.abstractThe aim of this study was to determine the biomechanical parameters that explain ventral start performance in swimming. For this purpose, 13 elite swimmers performed different variants of the ventral start technique. Two-dimensional video analyses of the aerial and underwater phases were used to assess 16 kinematic parameters from the starting signal to 5 m, and an instrumented starting block was used to assess kinetic data. A Lasso regression was used to reduce the number of parameters, providing the main determinants to starting performance, revealing different combinations of key determinants, depending on the variant (r² ≥ 0.90), with flight distance being the most relevant to all variants (r ≤ -0.80; p < .001). Also, special attention should be given to the total horizontal impulse in the grab start (r = -0.79; p < .001) and to the back foot action in the track and kick starts (r ≤ 0.61; p < .001). In addition, we provide two equations that could be easily used to predict starting performance by assessing block time and flight time (r² = 0.66) or block time and flight distance (r² = 0.83). These data provide relevant contributions to the further understanding of the biomechanics of swimming starts as well as insights for performance analysis and targeted interventions to improve athlete performance.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1080/17461391.2018.1486460pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.24/1839
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectAdolescentpt_PT
dc.subjectAthletic Performancept_PT
dc.subjectBiomechanical Phenomenapt_PT
dc.subjectFemalept_PT
dc.subjectFootpt_PT
dc.subjectHumanspt_PT
dc.subjectMalept_PT
dc.subjectSwimmingpt_PT
dc.subjectTime Factorspt_PT
dc.subjectYoung Adultpt_PT
dc.titleKey determinants of time to 5 m in different ventral swimming start techniquespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1326pt_PT
oaire.citation.issue10pt_PT
oaire.citation.startPage1317pt_PT
oaire.citation.titleEuropean Journal of Sport Sciencept_PT
oaire.citation.volume18pt_PT
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT

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