Neuromuscular, hormonal, and metabolic responses to different plyometric training volumes in rugby players - Cadore, E L; Pinheiro, E; Izquierdo, M; Correa, C S; Radaelli, R; Martins, J B; Lhullier, F L; Laitano, O; Cardoso, M; Pinto, R S (J Strength Cond Res, 2013)