Effects of Caffeine Ingestion on Physical Performance in Elite Women Handball Players: A Randomized, Controlled Study.
dc.contributor.author | Muñoz Moreno, Alejandro | |
dc.contributor.author | López Samanés, Álvaro | |
dc.contributor.author | Pérez López, Alberto | |
dc.contributor.author | Aguilar Navarro, Millán | |
dc.contributor.author | Moreno Heredero, Berta | |
dc.contributor.author | Rivilla García, Jesús | |
dc.contributor.author | González Frutos, Pablo | |
dc.contributor.author | Pino Ortega, José | |
dc.contributor.author | Morencos Martínez, Esther | |
dc.contributor.author | Del Coso, Juan | |
dc.date.accessioned | 2020-10-27T13:33:43Z | |
dc.date.available | 2020-10-27T13:33:43Z | |
dc.date.issued | 2020 | |
dc.description.abstract | Purpose: 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.description.extent | 676 KB | spa |
dc.identifier.doi | 10.1123/ijspp.2019-0847 | spa |
dc.identifier.issn | 1555-0265 | spa |
dc.identifier.uri | http://hdl.handle.net/10641/2043 | |
dc.language.iso | eng | spa |
dc.publisher | International Journal of Sports Physiology and Performance | spa |
dc.relation.publisherversion | https://journals.humankinetics.com/view/journals/ijspp/aop/article-10.1123-ijspp.2019-0847/article-10.1123-ijspp.2019-0847.xml | spa |
dc.rights | Atribución-NoComercial-SinDerivadas 3.0 España | * |
dc.rights.accessRights | open access | spa |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.subject | Nutrition | spa |
dc.title | Effects of Caffeine Ingestion on Physical Performance in Elite Women Handball Players: A Randomized, Controlled Study. | spa |
dc.type | journal article | spa |
dc.type.hasVersion | SMUR | spa |
dspace.entity.type | Publication | |
relation.isAuthorOfPublication | d741b174-6a67-4857-a659-3d660adce645 | |
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relation.isAuthorOfPublication.latestForDiscovery | d741b174-6a67-4857-a659-3d660adce645 |
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