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Short-Time β-Alanine Supplementation on the Acute Strength Performance after High-Intensity Intermittent Exercise in Recreationally Trained Men

(1) Background: We investigated the effects of 28 days of beta-alanine (β-alanine) supplementation on the acute interference effect of high-intensity intermittent exercise (HIIE) on lower-body resistance exercise performance, body composition, and strength when combined with a resistance training pr...

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Autores principales: Freitas, Marcelo Conrado, Cholewa, Jason, Panissa, Valéria, Quizzini, Giovanni, de Oliveira, João Vitor, Figueiredo, Caique, Gobbo, Luis Alberto, Caperuto, Erico, Zanchi, Nelo Eidy, Lira, Fabio, Rossi, Fabrício Eduardo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6571921/
https://www.ncbi.nlm.nih.gov/pubmed/31075911
http://dx.doi.org/10.3390/sports7050108
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author Freitas, Marcelo Conrado
Cholewa, Jason
Panissa, Valéria
Quizzini, Giovanni
de Oliveira, João Vitor
Figueiredo, Caique
Gobbo, Luis Alberto
Caperuto, Erico
Zanchi, Nelo Eidy
Lira, Fabio
Rossi, Fabrício Eduardo
author_facet Freitas, Marcelo Conrado
Cholewa, Jason
Panissa, Valéria
Quizzini, Giovanni
de Oliveira, João Vitor
Figueiredo, Caique
Gobbo, Luis Alberto
Caperuto, Erico
Zanchi, Nelo Eidy
Lira, Fabio
Rossi, Fabrício Eduardo
author_sort Freitas, Marcelo Conrado
collection PubMed
description (1) Background: We investigated the effects of 28 days of beta-alanine (β-alanine) supplementation on the acute interference effect of high-intensity intermittent exercise (HIIE) on lower-body resistance exercise performance, body composition, and strength when combined with a resistance training program. (2) Methods: Twenty-two males were randomized into: β-alanine supplementation (6.4 g/day) or placebo (6.4 g/day maltodextrin) during 28 days. Total body water, intracellular and extracellular water, fat-free mass (FFM), and fat mass were assessed using bioelectrical impedance. Participants performed 5000-m HIIE (1:1 effort and rest ratio) followed by resistance exercise (four sets of 80% at 45° leg press until muscular failure) at baseline and after 28 days. The resistance training program consisted of three sets of 10 to 12 RM with 90 s of rest, four days per week. (3) Results: For the post-HIIE leg press volume, higher values were observed post-training than pre-training, but no group x time interaction was observed. There was a non-significant trend for an interaction in the FFM change (β-alanine = 2.8% versus placebo = 1.0%, p = 0.072). (4) Conclusion: Twenty-eight days of β-alanine supplementation did not prevent acute strength loss during resistance exercise after high-intensity interval exercise, nor increase strength or hypertrophic adaptations associated with resistance training.
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spelling pubmed-65719212019-06-18 Short-Time β-Alanine Supplementation on the Acute Strength Performance after High-Intensity Intermittent Exercise in Recreationally Trained Men Freitas, Marcelo Conrado Cholewa, Jason Panissa, Valéria Quizzini, Giovanni de Oliveira, João Vitor Figueiredo, Caique Gobbo, Luis Alberto Caperuto, Erico Zanchi, Nelo Eidy Lira, Fabio Rossi, Fabrício Eduardo Sports (Basel) Article (1) Background: We investigated the effects of 28 days of beta-alanine (β-alanine) supplementation on the acute interference effect of high-intensity intermittent exercise (HIIE) on lower-body resistance exercise performance, body composition, and strength when combined with a resistance training program. (2) Methods: Twenty-two males were randomized into: β-alanine supplementation (6.4 g/day) or placebo (6.4 g/day maltodextrin) during 28 days. Total body water, intracellular and extracellular water, fat-free mass (FFM), and fat mass were assessed using bioelectrical impedance. Participants performed 5000-m HIIE (1:1 effort and rest ratio) followed by resistance exercise (four sets of 80% at 45° leg press until muscular failure) at baseline and after 28 days. The resistance training program consisted of three sets of 10 to 12 RM with 90 s of rest, four days per week. (3) Results: For the post-HIIE leg press volume, higher values were observed post-training than pre-training, but no group x time interaction was observed. There was a non-significant trend for an interaction in the FFM change (β-alanine = 2.8% versus placebo = 1.0%, p = 0.072). (4) Conclusion: Twenty-eight days of β-alanine supplementation did not prevent acute strength loss during resistance exercise after high-intensity interval exercise, nor increase strength or hypertrophic adaptations associated with resistance training. MDPI 2019-05-09 /pmc/articles/PMC6571921/ /pubmed/31075911 http://dx.doi.org/10.3390/sports7050108 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Freitas, Marcelo Conrado
Cholewa, Jason
Panissa, Valéria
Quizzini, Giovanni
de Oliveira, João Vitor
Figueiredo, Caique
Gobbo, Luis Alberto
Caperuto, Erico
Zanchi, Nelo Eidy
Lira, Fabio
Rossi, Fabrício Eduardo
Short-Time β-Alanine Supplementation on the Acute Strength Performance after High-Intensity Intermittent Exercise in Recreationally Trained Men
title Short-Time β-Alanine Supplementation on the Acute Strength Performance after High-Intensity Intermittent Exercise in Recreationally Trained Men
title_full Short-Time β-Alanine Supplementation on the Acute Strength Performance after High-Intensity Intermittent Exercise in Recreationally Trained Men
title_fullStr Short-Time β-Alanine Supplementation on the Acute Strength Performance after High-Intensity Intermittent Exercise in Recreationally Trained Men
title_full_unstemmed Short-Time β-Alanine Supplementation on the Acute Strength Performance after High-Intensity Intermittent Exercise in Recreationally Trained Men
title_short Short-Time β-Alanine Supplementation on the Acute Strength Performance after High-Intensity Intermittent Exercise in Recreationally Trained Men
title_sort short-time β-alanine supplementation on the acute strength performance after high-intensity intermittent exercise in recreationally trained men
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6571921/
https://www.ncbi.nlm.nih.gov/pubmed/31075911
http://dx.doi.org/10.3390/sports7050108
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