dc.contributor.author | Todorovic, Nikola | |
dc.contributor.author | Santibañez-Gutierrez, Asier | |
dc.contributor.author | Milovanov, Djordje | |
dc.contributor.author | Stajer, Valdemar | |
dc.contributor.author | Ostojic, Sergej | |
dc.contributor.author | Fernández-Landa, Julen | |
dc.date.accessioned | 2023-01-11T08:54:37Z | |
dc.date.available | 2023-01-11T08:54:37Z | |
dc.date.created | 2022-12-29T15:20:02Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | Todorovic, N., Santibañez-Gutierrez, A., Milovanov, D., Stajer, V., Ostojic, S. & Fernández-Landa, J. (2022). Effects of acute b-alanine supplementation on countermovement jump performance after a 4x400 m fatigue protocol: A randomized, double-blind, placebo-controlled trial. Kinesiology, 54(2), 201-207. doi: | en_US |
dc.identifier.issn | 1331-1441 | |
dc.identifier.uri | https://hdl.handle.net/11250/3042570 | |
dc.description.abstract | This study aimed to examine the effect of acute beta-alanine (β-alanine) supplementation on jump performance after a strenuous fatigue protocol. Twelve healthy young men (age 21.4±0.5 years, body height 180.2±5.8 cm, body mass 76.6±9.2 kg) volunteered to participate in this randomized, double-blind, placebocontrolled trial. The experimental group ingested 3.2 g of β-alanine (separated into two 1.6 g dosages) mixed with 23 g of glucose, whereas the placebo group ingested two dosages containing 23 g of glucose. Following the supplementation intake, participants completed a jump protocol involving countermovement jump (CMJ) and four consecutive countermovement jumps (CMJ-4). Subsequently, a 4x400 m running fatigue protocol was carried out to produce fatigue. After the fatigue protocol, the same jumping tests were repeated, CMJ and CMJ-4, to evaluate the loss in jump height. The Mann-Whitney U test was used to analyze differences between the groups, whereas Wilcoxon signed-rank test was conducted to analyze differences within the groups with statistical significance set at p<.05. After β-alanine supplementation, no significant decrease in jump height was found in the experimental group in none of the tests after the fatigue protocol. Conversely, a significant decrease was noticed in the placebo group in CMJ but not in the CMJ-4 test. In conclusion, an acute β-alanine supplementation could attenuate jump height loss after the fatigue protocol. Therefore, athletes and coaches should consider acute β-alanine supplementation to attenuate sports performance decrease after high-intensity exercises in which muscle acidosis is highly increased. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Faculty of Kinesiology, Kineziološki fakultet, Horvaćanski | en_US |
dc.rights | Navngivelse-Ikkekommersiell 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc/4.0/deed.no | * |
dc.title | Effects of acute b-alanine supplementation on countermovement jump performance after a 4x400 m fatigue protocol: A randomized, double-blind, placebo-controlled trial | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © 2022 The Author(s) | en_US |
dc.subject.nsi | VDP::Medisinske Fag: 700::Helsefag: 800::Ernæring: 811 | en_US |
dc.source.pagenumber | 201-207 | en_US |
dc.source.volume | 54 | en_US |
dc.source.journal | Kinesiology | en_US |
dc.source.issue | 2 | en_US |
dc.identifier.doi | 10.26582/k.54.2.1 | |
dc.identifier.cristin | 2098032 | |
cristin.qualitycode | 1 | |