Table 1. Protocols for the three training conditions Condition Initial prescription Within-set criterion Load-regulation procedure PBT 80% 1RM; 5 sets 5 repetitions per set Load, number of sets, and repetitions were not adjusted according to subjective readiness or movement velocity. RIR 80% 1RM; 5 sets Up to 5 repetitions per set; target = 3 RIR RIR was reported after each set. The next-set load was reduced by 5 kg when RIR was < 3, increased by 5 kg when RIR was > 3, and left unchanged when RIR was 3. VBT 80% 1RM; 5 sets 20% decrease in mean concentric velocity or completion of 5 repetitions Set termination was determined from real-time mean concentric velocity; training load remained unchanged. Abbreviations: 1RM, one-repetition maximum; PBT, percentage-based training; RIR, repetitions in reserve; VBT, velocity-based training.