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dc.contributor.authorMerino Fernández, María
dc.contributor.authorRuiz Moreno, Carlos
dc.contributor.authorGiráldez Costas, Verónica
dc.contributor.authorGonzález Millán, Cristina
dc.contributor.authorMatos Duarte, Michelle 
dc.contributor.authorGutiérrez Hellín, Jorge 
dc.contributor.authorGonzález García, Jaime
dc.date.accessioned2021-07-21T11:35:52Z
dc.date.available2021-07-21T11:35:52Z
dc.date.issued2021
dc.identifier.issn2072-6643spa
dc.identifier.urihttp://hdl.handle.net/10641/2348
dc.description.abstractCaffeine increases vertical jump, although its effects on kinetics and kinematics during different phases of bilateral and unilateral jumps remain unclear. The aim of this study was to identify the effects of 3 mg/kg on kinetic, kinematic and temporal variables in the concentric and eccentric phases of bilateral and unilateral countermovement jumps. A total of 16 Spanish national team traditional Jiu-Jitsu athletes took part in two experimental trials (3 mg/kg caffeine or placebo) in a randomized, double-blind crossover study. Sixty minutes after ingestion, bilateral and unilateral jumps were performed on a force platform. Compared to the placebo, caffeine increased bilateral jump height (p = 0.008; D% = 4.40), flight time (p = 0.008; D% = 2.20), flight time:contraction time (p = 0.029; D% = 8.90), concentric impulse (p = 0.018; D% = 1.80), peak power (p = 0.049; D% = 2.50), RSI-modified (p = 0.011; D% = 11.50) and eccentric mean braking force (p = 0.045; D% = 4.00). Additionally, caffeine increased unilateral RSI-mod in both legs (Left: p = 0.034; D% = 7.65; Right: p = 0.004; D% = 11.83), left leg flight time (p = 0.044; D% = 1.91), left leg jump height (p = 0.039; D% = 3.75) and right leg FT:CT (p = 0.040; D% = 9.72). Caffeine in a dose of 3 mg/kg BM in elite Jiu- Jitsu athletes is a recommended ergogenic aid as it increased performance of bilateral and unilateral vertical jumps. These increases were also accompanied by modified jump execution during the different phases of the countermovement prior to take-off.spa
dc.language.isoengspa
dc.publisherNutrientsspa
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subjectPowerspa
dc.subjectReliabilityspa
dc.subjectEccentricspa
dc.subjectForce-timespa
dc.subjectJump biomechanicsspa
dc.titleCaffeine Doses of 3 mg/kg Increase Unilateral and Bilateral Vertical Jump Outcomes in Elite Traditional Jiu-Jitsu Athletes.spa
dc.typearticlespa
dc.description.versionpost-printspa
dc.rights.accessRightsopenAccessspa
dc.description.extent746 KBspa
dc.identifier.doi10.3390/nu13051705spa
dc.relation.publisherversionhttps://www.mdpi.com/2072-6643/13/5/1705spa


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Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España