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Citrulline malate does not improve muscle recovery after resistance exercise in untrained young adult men

da silva Douglas K., Jacinto Jeferson L., de Andrade Walquiria B., Roveratti Mirela C., Estoche José M., Balvedi Mario C. W., de Oliveira Douglas B., da Silva Rubens Alexandre et Aguiar Andreo Fernando. (2017). Citrulline malate does not improve muscle recovery after resistance exercise in untrained young adult men. Nutrients, 9, (10), p. 1132.

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URL officielle: http://dx.doi.org/10.3390/nu9101132

Résumé

he effects of citrulline malate (CM) on muscle recovery from resistance exercise remains unknown. We aimed to determine if citrulline malate supplementation improves muscle recovery after a single session of high-intensity resistance exercise (RE) in untrained young adult men. Nine young adult men (24.0 ± 3.3 years) participated in a double-blind crossover study in which they received 6 g of CM and placebo (PL) on two occasions, separated by a seven-day washout period. Each occasion consisted of a single session of high-intensity RE (0 h) and three subsequent fatigue tests sessions (at 24, 48, and 72 h) to assess the time course of muscle recovery. During the tests sessions, we assessed the following variables: number of maximum repetitions, electromyographic signal (i.e., root mean square (RMS) and median frequency (MF)), muscle soreness and perceived exertion, as well as blood levels of creatine kinase (CK), lactate, insulin, and testosterone:cortisol ratio. CK levels increased at 24 h post-exercise and remained elevate at 48 and 72 h, with no difference between CM and PL conditions. Muscle soreness increased at 24 h post-exercise, which progressively returned to baseline at 72 h in both conditions. Lactate levels increased immediately post-exercise and remained elevated at 24, 48, and 72 h in both conditions. No significant treatment × time interaction was found for all dependents variables (maximum repetitions, perceived exertion, CK, lactate, RMS, MF, and testosterone:cortisol ratio) during the recovery period. In conclusion, our data indicate that CM supplementation (single 6 g dose pre-workout) does not improve the muscle recovery process following a high-intensity RE session in untrained young adult men.

Type de document:Article publié dans une revue avec comité d'évaluation
Volume:9
Numéro:10
Pages:p. 1132
Version évaluée par les pairs:Oui
Date:2017
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, skeletal muscle, weight training, amino acids, protein, exercise, suppléments, muscles squelettiques, entraînement aux poids, acides aminés, protéines, exercice
Déposé le:07 nov. 2017 00:37
Dernière modification:07 nov. 2017 00:37
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