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dc.contributor.authorMuñoz Moreno, Alejandro 
dc.contributor.authorLópez Samanés, Álvaro 
dc.contributor.authorPérez López, Alberto
dc.contributor.authorAguilar Navarro, Millán 
dc.contributor.authorMoreno Heredero, Berta
dc.contributor.authorRivilla García, Jesús
dc.contributor.authorGonzález Frutos, Pablo 
dc.contributor.authorPino Ortega, José
dc.contributor.authorMorencos Martínez, Esther 
dc.contributor.authorDel Coso, Juan
dc.date.accessioned2020-10-27T13:33:43Z
dc.date.available2020-10-27T13:33:43Z
dc.date.issued2020
dc.identifier.issn1555-0265spa
dc.identifier.urihttp://hdl.handle.net/10641/2043
dc.description.abstractPurpose: To investigate the effects of acute caffeine (CAFF) intake on physical performance in elite women handball players. Methods: A total of 15 elite women handball players participated in a randomized, double-blind study. In 2 different trials, participants ingested either a placebo (cellulose) or 3 mg of CAFF per kilogram of body mass (mg/kg bm) before undergoing a battery of neuromuscular tests consisting of handball throws, an isometric handgrip strength test, a countermovement jump, a 30-m sprint test (SV) and a modified version of the agility T test. Then, participants performed a simulated handball game (2 × 20 min), and movement patterns were recorded with a local positioning system. Results: Compared with the placebo, CAFF increased ball velocity in all ball throws (P = .021–.044; effect size [ES] = 0.39–0.49), strength in isometric handgrip strength test (350.8 [41.2] vs 361.6 [46.1] N, P = .034; ES = 0.35), and countermovement-jump height (28.5 [5.5] vs 29.8 [5.5] cm; P = .006; ES = 0.22). In addition, CAFF decreased running time in the SV (4.9 [0.2] vs 4.8 [0.3] s; P = .042; ES = −0.34). In the simulated game, CAFF increased the frequency of accelerations (18.1 [1.2] vs 18.8 [1.0] number/min; P = .044; ES = 0.54), decelerations (18.0 [1.2] vs 18.7 [1.0] number/min; P = .032; ES = 0.56), and body impacts (20 [8] vs 22 [10] impacts/min; P = .032; ES = 0.30). However, postexercise surveys about self-reported feelings of performance indicate that players did not feel increased performance with CAFF. Conclusion: Preexercise ingestion of 3 mg/kg bm of CAFF improved ball-throwing velocity, jump, and sprint performance and the frequency of in-game accelerations and decelerations in elite women handball players.spa
dc.language.isoengspa
dc.publisherInternational Journal of Sports Physiology and Performancespa
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subjectNutritionspa
dc.titleEffects of Caffeine Ingestion on Physical Performance in Elite Women Handball Players: A Randomized, Controlled Study.spa
dc.typearticlespa
dc.description.versionpre-printspa
dc.rights.accessRightsopenAccessspa
dc.description.extent676 KBspa
dc.identifier.doi10.1123/ijspp.2019-0847spa
dc.relation.publisherversionhttps://journals.humankinetics.com/view/journals/ijspp/aop/article-10.1123-ijspp.2019-0847/article-10.1123-ijspp.2019-0847.xmlspa


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