Short-term branched-chain amino acid supplementation does not enhance vertical jump in professional volleyball players. A double-blind, controlled, randomized study - Martín-Martínez, J. P.; Calleja-Gonzalez, J.; Adsuar Sala, J. C.; Gómez-Pomares, S.; Carlos-Vivas, J.; Pérez-Gómez, J. (Nutrición Hospitalaria, 2020)