Sánchez Moreno, MiguelBachero Mena, BeatrizSánchez-Valdepeñas Mateos-Aparicio, JuanYuzo Nakamura, FabioPareja Blanco, Fernando2025-02-192025-02-192024Sánchez-Moreno, M., Bachero-Mena, B., Sánchez-Valdepeñas, J., Nakamura, F. Y., & Pareja-Blanco, F. (2024). Impact of Generalized Versus Individualized Load-Velocity Equations on Velocity-Loss Magnitude in Bench-Press Exercise: Mixed-Model and Equivalence Analysis. International journal of sports physiology and performance, 19(12), 1480–1490. https://doi.org/10.1123/ijspp.2024-019410.1123/ijspp.2024-0194https://hdl.handle.net/10433/23229Purpose: This study analyzed the influence of 2 velocity-based training-load prescription strategies (general vs individual load-velocity equations) on the relationship between the magnitude of velocity loss (VL) and the percentage of repetitions completed in the bench-press exercise. Methods: Thirty-five subjects completed 6 sessions consisting of performing the maximum number of repetitions to failure against their 40%, 60%, and 80% of 1-repetition maximum (1RM) in the Smith machine bench-press exercise using generalized and individualized equations to adjust the training load. Results: A close relationship and acceptable error were observed between percentage of repetitions completed and the percentage of VL reached for the 3 loading magnitudes and the 2 load-prescription strategies studied (R2 from .83 to .94; standard error of the estimate from 7% to 10%). A simple main effect was observed for load and VL thresholds but not for load-prescription strategies. No significant interaction effects were revealed. The 40% and 60% 1RM showed equivalence on data sets and the most regular variation, whereas the 80% 1-repetition maximum load showed no equivalence and more irregular variation. Conclusion: These results suggest that VL is a useful variable to predict percentage of repetitions completed in the bench-press exercise, regardless of the strategy selected to adjust the relative load. However, caution should be taken when using heavy loads.application/pdfenAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/IntensityMovement velocityResistance trainingTraining volumeVelocity-based trainingjournal articleopen access