Six weeks of β-alanine supplementation did not enhance repeated-sprint ability or technical performances in young elite basketball players
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1177/0260106017700436 http://hdl.handle.net/11449/177009 |
Resumo: | Supplementation with β-alanine plays an important role as a precursor of carnosine, the most effective intramuscular buffer, and has been seen as a potential ergogenic aid, especially for high-intensity modalities such as basketball. Thus, the aim of the present study was to investigate the effects of 6 weeks of β-alanine supplementation on repeated sprint ability (RSA) and technical performances in young elite Brazilian basketball players. In total, 27 young basketball players (17±1 years) were randomized into a β-alanine group (Gβ - 6.4 g day-1 of β-alanine) and a placebo group (GP - 6.4 g day-1 of dextrose). Before and after the supplementation period the athletes performed a RSA test composed of ten 30 m sprints with two 180° changes of direction interspaced by 30 s of recovery. During the recovery period (i.e., after the sprints) the athletes performed a countermovement jump (CMJ) and a set of three free throws. After 48 h they performed a Yo-Yo intermittent recovery test level 1 (Yo-Yo IR1). Both groups increased the distance covered in the Yo-Yo IR1 after the supplementation period ( p = 0.001). On the other hand, both groups presented impairment in RSA time-performance (total time, best time, and mean time, p ≤ 0.04), while no significant changes were observed for technical task performances (i.e., CMJ and free throws) ( p ≥ 0.07). No between-group interactions were observed for any variable measured ( p ≥ 0.31). Thus, 6 weeks of β-alanine supplementation did not improve RSA or technical performances in young elite basketball players. |
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Six weeks of β-alanine supplementation did not enhance repeated-sprint ability or technical performances in young elite basketball playersexercise testingfree throwsjump abilityRepeated sprint abilityYo-Yo IR1Supplementation with β-alanine plays an important role as a precursor of carnosine, the most effective intramuscular buffer, and has been seen as a potential ergogenic aid, especially for high-intensity modalities such as basketball. Thus, the aim of the present study was to investigate the effects of 6 weeks of β-alanine supplementation on repeated sprint ability (RSA) and technical performances in young elite Brazilian basketball players. In total, 27 young basketball players (17±1 years) were randomized into a β-alanine group (Gβ - 6.4 g day-1 of β-alanine) and a placebo group (GP - 6.4 g day-1 of dextrose). Before and after the supplementation period the athletes performed a RSA test composed of ten 30 m sprints with two 180° changes of direction interspaced by 30 s of recovery. During the recovery period (i.e., after the sprints) the athletes performed a countermovement jump (CMJ) and a set of three free throws. After 48 h they performed a Yo-Yo intermittent recovery test level 1 (Yo-Yo IR1). Both groups increased the distance covered in the Yo-Yo IR1 after the supplementation period ( p = 0.001). On the other hand, both groups presented impairment in RSA time-performance (total time, best time, and mean time, p ≤ 0.04), while no significant changes were observed for technical task performances (i.e., CMJ and free throws) ( p ≥ 0.07). No between-group interactions were observed for any variable measured ( p ≥ 0.31). Thus, 6 weeks of β-alanine supplementation did not improve RSA or technical performances in young elite basketball players.Department of Physical Education, São Paulo State University (Unesp), Bauru/SP, BrazilUniversidade Estadual Paulista (Unesp)Milioni, FabioRedkva, Paulo E.Barbieri, Fabio A.Zagatto, Alessandro M.2018-12-11T17:23:29Z2018-12-11T17:23:29Z2017-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article111-118application/pdfhttp://dx.doi.org/10.1177/0260106017700436Nutrition and health, v. 23, n. 2, p. 111-118, 2017.0260-1060http://hdl.handle.net/11449/17700910.1177/02601060177004362-s2.0-850191841182-s2.0-85019184118.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengNutrition and healthinfo:eu-repo/semantics/openAccess2024-04-24T18:53:42Zoai:repositorio.unesp.br:11449/177009Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:23:45.304109Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Six weeks of β-alanine supplementation did not enhance repeated-sprint ability or technical performances in young elite basketball players |
title |
Six weeks of β-alanine supplementation did not enhance repeated-sprint ability or technical performances in young elite basketball players |
spellingShingle |
Six weeks of β-alanine supplementation did not enhance repeated-sprint ability or technical performances in young elite basketball players Milioni, Fabio exercise testing free throws jump ability Repeated sprint ability Yo-Yo IR1 |
title_short |
Six weeks of β-alanine supplementation did not enhance repeated-sprint ability or technical performances in young elite basketball players |
title_full |
Six weeks of β-alanine supplementation did not enhance repeated-sprint ability or technical performances in young elite basketball players |
title_fullStr |
Six weeks of β-alanine supplementation did not enhance repeated-sprint ability or technical performances in young elite basketball players |
title_full_unstemmed |
Six weeks of β-alanine supplementation did not enhance repeated-sprint ability or technical performances in young elite basketball players |
title_sort |
Six weeks of β-alanine supplementation did not enhance repeated-sprint ability or technical performances in young elite basketball players |
author |
Milioni, Fabio |
author_facet |
Milioni, Fabio Redkva, Paulo E. Barbieri, Fabio A. Zagatto, Alessandro M. |
author_role |
author |
author2 |
Redkva, Paulo E. Barbieri, Fabio A. Zagatto, Alessandro M. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Milioni, Fabio Redkva, Paulo E. Barbieri, Fabio A. Zagatto, Alessandro M. |
dc.subject.por.fl_str_mv |
exercise testing free throws jump ability Repeated sprint ability Yo-Yo IR1 |
topic |
exercise testing free throws jump ability Repeated sprint ability Yo-Yo IR1 |
description |
Supplementation with β-alanine plays an important role as a precursor of carnosine, the most effective intramuscular buffer, and has been seen as a potential ergogenic aid, especially for high-intensity modalities such as basketball. Thus, the aim of the present study was to investigate the effects of 6 weeks of β-alanine supplementation on repeated sprint ability (RSA) and technical performances in young elite Brazilian basketball players. In total, 27 young basketball players (17±1 years) were randomized into a β-alanine group (Gβ - 6.4 g day-1 of β-alanine) and a placebo group (GP - 6.4 g day-1 of dextrose). Before and after the supplementation period the athletes performed a RSA test composed of ten 30 m sprints with two 180° changes of direction interspaced by 30 s of recovery. During the recovery period (i.e., after the sprints) the athletes performed a countermovement jump (CMJ) and a set of three free throws. After 48 h they performed a Yo-Yo intermittent recovery test level 1 (Yo-Yo IR1). Both groups increased the distance covered in the Yo-Yo IR1 after the supplementation period ( p = 0.001). On the other hand, both groups presented impairment in RSA time-performance (total time, best time, and mean time, p ≤ 0.04), while no significant changes were observed for technical task performances (i.e., CMJ and free throws) ( p ≥ 0.07). No between-group interactions were observed for any variable measured ( p ≥ 0.31). Thus, 6 weeks of β-alanine supplementation did not improve RSA or technical performances in young elite basketball players. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-01 2018-12-11T17:23:29Z 2018-12-11T17:23:29Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1177/0260106017700436 Nutrition and health, v. 23, n. 2, p. 111-118, 2017. 0260-1060 http://hdl.handle.net/11449/177009 10.1177/0260106017700436 2-s2.0-85019184118 2-s2.0-85019184118.pdf |
url |
http://dx.doi.org/10.1177/0260106017700436 http://hdl.handle.net/11449/177009 |
identifier_str_mv |
Nutrition and health, v. 23, n. 2, p. 111-118, 2017. 0260-1060 10.1177/0260106017700436 2-s2.0-85019184118 2-s2.0-85019184118.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Nutrition and health |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
111-118 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129516013355008 |