Table 2. Realized training exposure across the three back-squat protocols Variable PBT RIR VBT Completed sets (n) 5 5 5 Mean external load per set (kg) 120.00 ± 17.38 121.44 ± 16.31 120.00 ± 17.38 Completed repetitions per session (n) 25.00 ± 0.00 25.00 ± 0.00 24.06 ± 0.94 Session volume load (kg) 3000.00 ± 434.60 3036.11 ± 407.64 2893.06 ± 474.82 Values are mean ± SD across 18 participants, except for the fixed number of sets. Session volume load was calculated as the sum of external load × completed repetitions across five sets. PBT, percentage-based training; RIR, repetitions in reserve; VBT, velocity-based training.