Effects of Four Weeks of β-Alanine Supplementation on Repeated Sprint Ability in Water Polo Players.
The purpose of this study was to investigate the effect of four weeks of β-alanine supplementation on repeated sprint ability in water polo players. Twenty-two male water polo players participated in the study, divided randomly into two homogeneous groups (placebo and β-alanine groups). The study de...
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doaj-eab003b34dd1418994131742d59a8d4d2020-11-25T01:46:00ZengPublic Library of Science (PLoS)PLoS ONE1932-62032016-01-011112e016796810.1371/journal.pone.0167968Effects of Four Weeks of β-Alanine Supplementation on Repeated Sprint Ability in Water Polo Players.Gabriel Motta Pinheiro BrisolaGuilherme Giannini ArtioliMarcelo PapotiAlessandro Moura ZagattoThe purpose of this study was to investigate the effect of four weeks of β-alanine supplementation on repeated sprint ability in water polo players. Twenty-two male water polo players participated in the study, divided randomly into two homogeneous groups (placebo and β-alanine groups). The study design was double-blind, parallel and placebo controlled. Before and after the supplementation period (28 days), the athletes performed two specific repeated sprint ability tests interspaced by a 30-minute swimming test. Participants received 4.8g∙day-1 of the supplement (dextrose or β-alanine) on the first 10 days and 6.4g∙day-1 on the final 18 days. There was no significant group-time interaction for any variable. The qualitative inference for substantial changes demonstrated a likely beneficial effect in the β-alanine group (β-alanine vs placebo) for mean time (6.6±0.4s vs 6.7±0.4s; 81% likely beneficial), worst time (6.9±0.5s vs 7.1±0.5s; 78% likely beneficial) and total time (39.3±2.5s vs 40.4±2.5s; 81% likely beneficial) in the first repeated sprint ability set and for worst time (7.2±0.6s vs 7.5±0.6s; 57% possible beneficial) in the second repeated sprint ability set. Further, was found substantial change for total time for both repeated sprint ability tests (80.8±5.7s vs 83.4±5.6s; 52% possible beneficial). To conclude, four weeks of β-alanine supplementation had a likely beneficial effect in the first set of repeated sprint ability tests and a possible beneficial effect for worst time in the second set performed in a specific protocol in water polo players.http://europepmc.org/articles/PMC5145207?pdf=render |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Gabriel Motta Pinheiro Brisola Guilherme Giannini Artioli Marcelo Papoti Alessandro Moura Zagatto |
spellingShingle |
Gabriel Motta Pinheiro Brisola Guilherme Giannini Artioli Marcelo Papoti Alessandro Moura Zagatto Effects of Four Weeks of β-Alanine Supplementation on Repeated Sprint Ability in Water Polo Players. PLoS ONE |
author_facet |
Gabriel Motta Pinheiro Brisola Guilherme Giannini Artioli Marcelo Papoti Alessandro Moura Zagatto |
author_sort |
Gabriel Motta Pinheiro Brisola |
title |
Effects of Four Weeks of β-Alanine Supplementation on Repeated Sprint Ability in Water Polo Players. |
title_short |
Effects of Four Weeks of β-Alanine Supplementation on Repeated Sprint Ability in Water Polo Players. |
title_full |
Effects of Four Weeks of β-Alanine Supplementation on Repeated Sprint Ability in Water Polo Players. |
title_fullStr |
Effects of Four Weeks of β-Alanine Supplementation on Repeated Sprint Ability in Water Polo Players. |
title_full_unstemmed |
Effects of Four Weeks of β-Alanine Supplementation on Repeated Sprint Ability in Water Polo Players. |
title_sort |
effects of four weeks of β-alanine supplementation on repeated sprint ability in water polo players. |
publisher |
Public Library of Science (PLoS) |
series |
PLoS ONE |
issn |
1932-6203 |
publishDate |
2016-01-01 |
description |
The purpose of this study was to investigate the effect of four weeks of β-alanine supplementation on repeated sprint ability in water polo players. Twenty-two male water polo players participated in the study, divided randomly into two homogeneous groups (placebo and β-alanine groups). The study design was double-blind, parallel and placebo controlled. Before and after the supplementation period (28 days), the athletes performed two specific repeated sprint ability tests interspaced by a 30-minute swimming test. Participants received 4.8g∙day-1 of the supplement (dextrose or β-alanine) on the first 10 days and 6.4g∙day-1 on the final 18 days. There was no significant group-time interaction for any variable. The qualitative inference for substantial changes demonstrated a likely beneficial effect in the β-alanine group (β-alanine vs placebo) for mean time (6.6±0.4s vs 6.7±0.4s; 81% likely beneficial), worst time (6.9±0.5s vs 7.1±0.5s; 78% likely beneficial) and total time (39.3±2.5s vs 40.4±2.5s; 81% likely beneficial) in the first repeated sprint ability set and for worst time (7.2±0.6s vs 7.5±0.6s; 57% possible beneficial) in the second repeated sprint ability set. Further, was found substantial change for total time for both repeated sprint ability tests (80.8±5.7s vs 83.4±5.6s; 52% possible beneficial). To conclude, four weeks of β-alanine supplementation had a likely beneficial effect in the first set of repeated sprint ability tests and a possible beneficial effect for worst time in the second set performed in a specific protocol in water polo players. |
url |
http://europepmc.org/articles/PMC5145207?pdf=render |
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