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Branched-chain amino acids do not improve muscle recovery from resistance exercise in untrained young adults.

Estoche José Maria, Jacinto Jeferson L., Roveratti Mirela C., Gabardo Juliano M., Buzzachera Cosme F., de Oliveira Erick P., Ribeiro Alex S., da Silva Rubens Alexandre et Aguiar Andreo Fernando. (2019). Branched-chain amino acids do not improve muscle recovery from resistance exercise in untrained young adults. Amino Acids,

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URL officielle: https://doi.org/10.1007/s00726-019-02776-5

Résumé

The purpose of this study was to investigate the effects of BCAA supplementation on muscle recovery from resistance exercise (RE) in untrained young adults. Twenty-four young adults (24.0 ± 4.3 years old) were assigned to 1 of 2 groups (n = 12 per group): a placebo-supplement group or a BCAA-supplement group. The groups were supplemented for a period of 5 days. On day 1 and 3, both groups underwent a RE session involving two lower body exercises (hack squat and leg press) and then were evaluated for muscle recovery on the 3 subsequent moments after the RE session [30 min (day 3), 24 h (day 4), and 48 h (day 5)]. The following indicators of muscle recovery were assessed: number of repetitions, rating of perceived exertion in the last RE session, muscle soreness and countermovement jump (CMJ) during recovery period (30 min, 24 h, and 48 h after RE session). Number of repetitions remained unchanged over time (time, P > 0.05), while the rating of perceived exertion increased (time, P < 0.05) over 3 sets, with no difference between groups (group × time, P > 0.05). Muscle soreness increased (time, P < 0.05) and jumping weight decreased (time, P < 0.05) at 30 min post-exercise and then progressively returned to baseline at 24 and 48 h post-exercise, with no difference between groups (group × time, P > 0.05). The results indicate that BCAA supplementation does not improve muscle recovery from RE in untrained young adults.

Type de document:Article publié dans une revue avec comité d'évaluation
Version évaluée par les pairs:Oui
Date:2019
Sujets:Sciences de la santé
Sciences de la santé > Sciences de l'activité physique et réadaptation
Sciences de la santé > Sciences de l'activité physique et réadaptation > Physiothérapie
Département, module, service et unité de recherche:Départements et modules > Département des sciences de la santé > Unité d'enseignement en physiothérapie
Mots-clés:supplementation, essential amino acids, muscle function, strength exercise, muscle soreness, muscle power, acides aminés essentiels, fonction musculaire, puissance musculaire, douleurs musculaires, exercices de force, suppléments
Informations complémentaires:epub ahead of print
Déposé le:12 sept. 2019 00:04
Dernière modification:29 août 2020 04:10
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