Beta alanine supplementation effects on metabolic contribution and swimming performance
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1186/s12970-020-00365-6 http://hdl.handle.net/11449/199163 |
Resumo: | Background: Investigations of β-alanine supplementation shows effects on metabolic (aerobic and anaerobic) participation and performance on swimming by a possible blood acidosis buffering. Considering this background, the objective of the present study was to analyze the effects of β-alanine supplementation on metabolic contribution and performance during 400-m swim. Methods: Thirteen competitive swimmers underwent a 6-week, double-blind placebo-controlled study, ingesting 4.8 g.day- 1 of β-alanine or placebo. Before and after the supplementation period, the total anaerobic contribution (TAn) and 30-s all-out tethered swimming effort (30TS) were assessed. Anaerobic alactic (AnAl) and lactic energy (AnLa) was assumed as the fast component of excess post-exercise oxygen consumption and net blood lactate accumulation during exercise (Δ[La-]), respectively. Aerobic contribution (Aer) was determined by the difference between total energy demand and TAn. In addition to conventional statistical analysis (Repeated measures ANOVA; p > 0.05), a Bayesian repeated measures ANOVA was used to evidence the effect probability (BFincl). Results: No differences and effects were found between groups, indicating no supplementation effects. Repeated measures ANOVA, with confirmation of effect, was indicate reduce in ΔLactate (p: 0.001; BFincl: 25.02); absolute AnLa (p: 0.002; BFincl: 12.61), fatigue index (p > 0.001; BFincl: 63.25) and total anaerobic participation (p: 0.008; BFincl: 4.89). Conclusions: Thus, the results demonstrated that all changes presented were evidenced as a result of exposure to the training period and β-alanine supplementation doesn't affect metabolic contribution and performance during 400-m freestyle. |
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Beta alanine supplementation effects on metabolic contribution and swimming performance30-s all-out tetheredAccumulated oxygen deficitAnaerobic energy releaseBeta-alanineSports scienceSwimmingBackground: Investigations of β-alanine supplementation shows effects on metabolic (aerobic and anaerobic) participation and performance on swimming by a possible blood acidosis buffering. Considering this background, the objective of the present study was to analyze the effects of β-alanine supplementation on metabolic contribution and performance during 400-m swim. Methods: Thirteen competitive swimmers underwent a 6-week, double-blind placebo-controlled study, ingesting 4.8 g.day- 1 of β-alanine or placebo. Before and after the supplementation period, the total anaerobic contribution (TAn) and 30-s all-out tethered swimming effort (30TS) were assessed. Anaerobic alactic (AnAl) and lactic energy (AnLa) was assumed as the fast component of excess post-exercise oxygen consumption and net blood lactate accumulation during exercise (Δ[La-]), respectively. Aerobic contribution (Aer) was determined by the difference between total energy demand and TAn. In addition to conventional statistical analysis (Repeated measures ANOVA; p > 0.05), a Bayesian repeated measures ANOVA was used to evidence the effect probability (BFincl). Results: No differences and effects were found between groups, indicating no supplementation effects. Repeated measures ANOVA, with confirmation of effect, was indicate reduce in ΔLactate (p: 0.001; BFincl: 25.02); absolute AnLa (p: 0.002; BFincl: 12.61), fatigue index (p > 0.001; BFincl: 63.25) and total anaerobic participation (p: 0.008; BFincl: 4.89). Conclusions: Thus, the results demonstrated that all changes presented were evidenced as a result of exposure to the training period and β-alanine supplementation doesn't affect metabolic contribution and performance during 400-m freestyle.University of São Paulo Medicine University of Ribeirão Preto (FMRP-USP)University of São Paulo School of Physical Education and Sport of Ribeirão Preto (EEFERP-USP)Estácio UniversityDepartment of Physical Education State São Paulo University (UNESP)Department of Physical Education Federal University of Pernambuco (UFPE)Department of Physical Education State São Paulo University (UNESP)Universidade de São Paulo (USP)Estácio UniversityUniversidade Estadual Paulista (Unesp)Universidade Federal de Pernambuco (UFPE)Norberto, Matheus SilvaBarbieri, Ricardo AugustoBertucci, Danilo Rodrigues [UNESP]Gobbi, Ronaldo BuckenCampos, Eduardo ZapaterraZagatto, Alessandrou Moura [UNESP]De Freitas, Ellen CristiniPapoti, Marcelo2020-12-12T01:32:23Z2020-12-12T01:32:23Z2020-07-25info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1186/s12970-020-00365-6Journal of the International Society of Sports Nutrition, v. 17, n. 1, 2020.1550-2783http://hdl.handle.net/11449/19916310.1186/s12970-020-00365-62-s2.0-85088624055Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the International Society of Sports Nutritioninfo:eu-repo/semantics/openAccess2021-10-23T04:16:39Zoai:repositorio.unesp.br:11449/199163Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:49:28.542242Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Beta alanine supplementation effects on metabolic contribution and swimming performance |
title |
Beta alanine supplementation effects on metabolic contribution and swimming performance |
spellingShingle |
Beta alanine supplementation effects on metabolic contribution and swimming performance Norberto, Matheus Silva 30-s all-out tethered Accumulated oxygen deficit Anaerobic energy release Beta-alanine Sports science Swimming |
title_short |
Beta alanine supplementation effects on metabolic contribution and swimming performance |
title_full |
Beta alanine supplementation effects on metabolic contribution and swimming performance |
title_fullStr |
Beta alanine supplementation effects on metabolic contribution and swimming performance |
title_full_unstemmed |
Beta alanine supplementation effects on metabolic contribution and swimming performance |
title_sort |
Beta alanine supplementation effects on metabolic contribution and swimming performance |
author |
Norberto, Matheus Silva |
author_facet |
Norberto, Matheus Silva Barbieri, Ricardo Augusto Bertucci, Danilo Rodrigues [UNESP] Gobbi, Ronaldo Bucken Campos, Eduardo Zapaterra Zagatto, Alessandrou Moura [UNESP] De Freitas, Ellen Cristini Papoti, Marcelo |
author_role |
author |
author2 |
Barbieri, Ricardo Augusto Bertucci, Danilo Rodrigues [UNESP] Gobbi, Ronaldo Bucken Campos, Eduardo Zapaterra Zagatto, Alessandrou Moura [UNESP] De Freitas, Ellen Cristini Papoti, Marcelo |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Estácio University Universidade Estadual Paulista (Unesp) Universidade Federal de Pernambuco (UFPE) |
dc.contributor.author.fl_str_mv |
Norberto, Matheus Silva Barbieri, Ricardo Augusto Bertucci, Danilo Rodrigues [UNESP] Gobbi, Ronaldo Bucken Campos, Eduardo Zapaterra Zagatto, Alessandrou Moura [UNESP] De Freitas, Ellen Cristini Papoti, Marcelo |
dc.subject.por.fl_str_mv |
30-s all-out tethered Accumulated oxygen deficit Anaerobic energy release Beta-alanine Sports science Swimming |
topic |
30-s all-out tethered Accumulated oxygen deficit Anaerobic energy release Beta-alanine Sports science Swimming |
description |
Background: Investigations of β-alanine supplementation shows effects on metabolic (aerobic and anaerobic) participation and performance on swimming by a possible blood acidosis buffering. Considering this background, the objective of the present study was to analyze the effects of β-alanine supplementation on metabolic contribution and performance during 400-m swim. Methods: Thirteen competitive swimmers underwent a 6-week, double-blind placebo-controlled study, ingesting 4.8 g.day- 1 of β-alanine or placebo. Before and after the supplementation period, the total anaerobic contribution (TAn) and 30-s all-out tethered swimming effort (30TS) were assessed. Anaerobic alactic (AnAl) and lactic energy (AnLa) was assumed as the fast component of excess post-exercise oxygen consumption and net blood lactate accumulation during exercise (Δ[La-]), respectively. Aerobic contribution (Aer) was determined by the difference between total energy demand and TAn. In addition to conventional statistical analysis (Repeated measures ANOVA; p > 0.05), a Bayesian repeated measures ANOVA was used to evidence the effect probability (BFincl). Results: No differences and effects were found between groups, indicating no supplementation effects. Repeated measures ANOVA, with confirmation of effect, was indicate reduce in ΔLactate (p: 0.001; BFincl: 25.02); absolute AnLa (p: 0.002; BFincl: 12.61), fatigue index (p > 0.001; BFincl: 63.25) and total anaerobic participation (p: 0.008; BFincl: 4.89). Conclusions: Thus, the results demonstrated that all changes presented were evidenced as a result of exposure to the training period and β-alanine supplementation doesn't affect metabolic contribution and performance during 400-m freestyle. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T01:32:23Z 2020-12-12T01:32:23Z 2020-07-25 |
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/10.1186/s12970-020-00365-6 Journal of the International Society of Sports Nutrition, v. 17, n. 1, 2020. 1550-2783 http://hdl.handle.net/11449/199163 10.1186/s12970-020-00365-6 2-s2.0-85088624055 |
url |
http://dx.doi.org/10.1186/s12970-020-00365-6 http://hdl.handle.net/11449/199163 |
identifier_str_mv |
Journal of the International Society of Sports Nutrition, v. 17, n. 1, 2020. 1550-2783 10.1186/s12970-020-00365-6 2-s2.0-85088624055 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of the International Society of Sports Nutrition |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1808129124440473600 |