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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Bassinello, Diogo [1] ; Painelli, Vitor de Salles [1] ; Dolan, Eimear [1] ; Lixandrao, Manoel [1] ; Cajueiro, Monique [1] ; de Capitani, Mariana [1] ; Saunders, Bryan [1, 2] ; Sale, Craig [3] ; Artioli, Guilherme G. [1, 2] ; Gualano, Bruno [1, 2] ; Roschel, Hamilton [1, 2]
Total Authors: 11
[1] Univ Sao Paulo, Fac Med FMUSP, Appl Physiol & Nutr Res Grp, Escola Educ Fis & Esporte, Ave Melo Moraes 65, BR-05508030 Sao Paulo, SP - Brazil
[2] Univ Sao Paulo, Fac Med FMUSP, Inst Orthopaed & Traumatol, Sao Paulo - Brazil
[3] Nottingham Trent Univ, Musculoskeletal Physiol Res Grp, Sport Hlth & Performance Enhancement Res Ctr, Sch Sci & Technol, Nottingham - England
Total Affiliations: 3
Document type: Journal article
Source: Amino Acids; v. 51, n. 1, p. 27-37, JAN 2019.
Web of Science Citations: 2

beta-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 4weeks 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 4week intervention, comprising an intake of 6.4gday(-1) of BA (n=9) or placebo (maltodextrin, n=11). Time-to-exhaustion during the isometric endurance test improved by 17% in the BA group (p<0.01), while PL remained unchanged. No significant within-group differences (p>0.1) were shown for any of the performance variables in the isokinetic test (peak torque, fatigue index, total work) nor for the total number of repetitions performed in the isotonic endurance tests (leg or bench press). Four weeks of BA supplementation (6.4gday(-1)) improved isometric, but not isokinetic or isotonic endurance performance. (AU)

FAPESP's process: 15/11328-2 - Carnosine metabolism in skeletal muscle: a multi-approach study. Substudy 3: exploring carnosine role in skeletal muscle
Grantee:Eimear Bernadette Dolan
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 16/10993-5 - Effects of exercise training in patients undergoing bariatric surgery: a randomized and clinical trial
Grantee:Hamilton Augusto Roschel da Silva
Support type: Regular Research Grants
FAPESP's process: 17/04973-4 - Nutritional supplementation and exercise to optimise exercise performance: focus on individual responses and a step towards personalized sports nutrition
Grantee:Bryan Saunders
Support type: Scholarships in Brazil - Young Researchers
FAPESP's process: 15/23072-2 - Effects of b-alanine supplementation on strength performance
Grantee:Diogo Bassinello Bonoli do Carmo
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 13/04806-0 - Effects of 12 weeks of high-intensity intermittent training on intramuscular carnosine concentrations
Grantee:Vitor de Salles Painelli
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 13/14746-4 - Carnosine metabolism in skeletal muscle: a multi-approach study
Grantee:Bruno Gualano
Support type: Research Projects - Thematic Grants
FAPESP's process: 16/50438-0 - Nutritional suplementation and exercise to optimize exercise performance: focus on individual responses and a step towards personalized sports nutrition
Grantee:Bryan Saunders
Support type: Research Grants - Young Investigators Grants