Table 4. Working-set repetition-volume, peak-velocity, and perceived-exertion characteristics across all 16 supervised sessions. Variable VL10% (n = 15) VL40% (n = 15) FAIL (n = 15) F p Prescribed relative load, % current 1RM 30 30 30 - - Load updated after session 8 Yes Yes Yes - - Prescribed session-reference peak-velocity decline, % 10 40 Not prescribed - - Mean session-reference peak velocity, m/s 2.03 ± 0.08 2.02 ± 0.08 2.00 ± 0.08 0.545 0.584 Mean of the best working-set peak velocity, m/s 2.00 ± 0.08 1.99 ± 0.08 1.98 ± 0.08 0.234 0.792 Repetition-weighted mean working-repetition peak velocity, m/s 1.92 ± 0.08a 1.58 ± 0.07b 1.29 ± 0.08c 257.536 < 0.001 Mean terminal peak velocity, m/s 1.81 ± 0.07a 1.21 ± 0.06b 0.80 ± 0.09c 678.639 < 0.001 Mean best-to-terminal velocity decline, % 9.48 ± 0.84a 39.25 ± 2.03b 59.70 ± 4.03c 2244.034† < 0.001 Mean decline from session calibration reference, % 10.60 ± 0.80a 40.00 ± 2.00b 60.00 ± 4.00c 2259.692† < 0.001 Working-set repetitions per session 55.91 ± 0.61a 74.26 ± 0.89b 94.08 ± 0.93c 8081.799 < 0.001 Total working-set repetitions over 16 sessions 894.6 ± 9.8 1188.2 ± 14.2 1505.3 ± 14.9 - - Session-averaged set RPE 12.44 ± 0.10a 15.53 ± 0.31b 16.74 ± 0.16c 4042.795† < 0.001 Values are mean ± SD unless otherwise stated and use participants as the unit of analysis. Different superscript letters within a row indicate a statistically significant between-group difference (adjusted p < 0.05). †Welch's ANOVA with Games-Howell post hoc comparisons; other tested continuous variables were analyzed using one-way ANOVA with Tukey HSD comparisons. Prescribed design variables were not tested. Velocity variables summarize 64 working sets per participant. Total working repetitions = mean repetitions per session × 16 and were not separately tested; the 5 calibration repetitions per session were excluded. RPE = rating of perceived exertion.