Jump performance of youth female basketball players following post-activation performance enhancement protocols

To compare bilateral vertical jump performance outcomes after post-activation performance enhancement (PAPE) protocols compared with standard warm-up in youth female basketball players. Participants ( n = 14; age = 13.60-16.61 years; body height: 161.02–190.10 cm; body mass: 55.30–80.70 kg) completed four protocols in a randomized crossover design: (i) control condition (raise–activate–mobilize–potentiate warm-up strategy, RAMP), (ii) RAMP + 9 s of isometric mid-thigh pull (IMTP), (iii) RAMP + squat jumps (SJ, 3 sets × 4 repetitions), (iv) RAMP + countermovement jumps (CMJ, 3 sets × 4 repetitions). The CMJ performance was assessed at baseline, 1 min, 5 min and 9 min following each protocol. Outcomes included jump height, peak power, and reactive strength index-modified (RSIm). Relative maximal isometric strength was measured using the IMTP before the experimental protocols. Compared with RAMP (linear mixed-effects model), additional conditioning activities (IMTP, SJ, CMJ) did not improve CMJ height, CMJ peak power, or CMJ RSIm (all p > 0.05) at 1 min, 5 min, or 9 min post-protocols, irrespective of relative maximal isometric strength. Compared with RAMP, addition of PAPE-intended protocols did not improve vertical jump performance in youth female basketball players, irrespective of relative maximal isometric strength.