RT Journal Article T1 Power up: Comparing PAPE responses in free-weight vs. flywheel resistance training systems A1 Galiano, Carlos A1 Núñez Sánchez, Francisco Javier A1 Floría, Pablo A1 Siquier-Coll, Jesús K1 Flywheel K1 Post-activation potentiation K1 Jump K1 Sprint K1 Performance K1 Fatigue K1 Resistance training AB Background: Post-activation potentiation enhancement (PAPE) is a physiological phenomenon that results in an acute improvement in muscular performance following a resistance training protocol, whose effects have been widely studied. However, due to methodological challenges in matching training stimuli, the results comparing the PAPE effect of strength training with flywheel or free-weight systems show inconsistencies in the literature. Since mean-propulsive velocity (MPV) is the most used parameter for monitoring free-weight intensity in real time, the aim of the study was to analyze the PAPE effect of a resistance training bout using free-weight and flywheel devices, matching intensities through MPV. Methods: Thirty physically active subjects participated in this crossover study, which aimed to compare the PAPE effect between a three-set, six-repetition halfsquat exercise with free-weight and flywheel devices. Training intensity was matched in both groups through MPV. Vertical jump and sprint tests were conducted pre- and 4 min post-intervention. Results: There was no group x time interaction for the jump and sprint (p > 0.05). Vertical jump decreased post-exercise (p < 0.001). Conclusions: When training intensity in free-weight and flywheel devices is matched through MPV, the acute performance alterations will be similarly matched, with no PAPE benefits observed at least 4 min post-exercise. PB MDPI YR 2025 FD 2025-07-29 LK https://hdl.handle.net/10433/26483 UL https://hdl.handle.net/10433/26483 LA en NO Applied Sciences, 15, 8426 NO Centro de Investigación en Rendimiento Físico y Deportivo DS RIO RD May 5, 2026