Beta-alanine supplementation improves isometric, but not isotonic or isokinetic strength endurance in recreationally strength-trained young men.

Adult Dietary Supplements Exercise Humans Isometric Contraction / drug effects Isotonic Contraction / drug effects Male Muscle Strength Dynamometer Muscle, Skeletal / metabolism Performance-Enhancing Substances / administration & dosage Physical Endurance / drug effects Young Adult beta-Alanine / administration & dosage

Acidosis Carnosine Muscle function Resistance Strength pH

Journal

Amino acids

ISSN: 1438-2199

Titre abrégé: Amino Acids

Pays: Austria

ID NLM: 9200312

Informations de publication

Date de publication:
Jan 2019

Historique:

received: 29 01 2018

accepted: 23 05 2018

pubmed: 16 6 2018

medline: 30 6 2019

entrez: 16 6 2018

Statut: ppublish

Résumé

β-Alanine (BA) supplementation may be ergogenic during high-intensity exercise, primarily due to the buffering of hydrogen cations, although the effects of beta-alanine supplementation on strength endurance are equivocal. The aim of the study was to determine the effects of 4 weeks of beta-alanine supplementation on skeletal muscle endurance using a battery of performance tests. This study employed a parallel group, repeated measures, randomised, double-blinded and placebo-controlled design. Twenty recreationally strength-trained healthy males completed tests of isotonic strength endurance (repeated bench and leg press), along with tests of isometric and isokinetic endurance conducted using an isokinetic dynamometer. Tests were performed before and after a 4 week intervention, comprising an intake of 6.4 g day

Identifiants

DOI: 10.1007/s00726-018-2593-8 PMID: 29905904

pubmed: 29905904

doi: 10.1007/s00726-018-2593-8

pii: 10.1007/s00726-018-2593-8

doi:

Substances chimiques

Performance-Enhancing Substances 0

beta-Alanine 11P2JDE17B

Types de publication

Journal Article Randomized Controlled Trial

Langues

eng