Validity of Rating of Perceived Exertion Scales in Relation to Movement Velocity and Exercise Intensity During Resistance-Exercise: A Systematic Review. - Petro, Jorge L.; Ferrari, Guido; Cardozo, Luis A.; Vargas-Molina, Salvador; Carbone, Leandro; Kreider, Richard B.; Bonilla, Diego A. (Sports Health: A Multidisciplinary Approach, 2025)