Iglesias-Soler, EliseoRial-Vázquez, JessicaNine, IvánFariñas Rodríguez, JuanRevuelta-Lera, BorjaGarcía-Ramos, AmadorNational Strength and Conditioning Association2025-06-022024-09Iglesias-Soler, E., Rial-Vázquez, J., Nine, I., Fariñas, J., Revuelta-Lera, B., & García-Ramos, A. (2024).Variability in the relationship between velocity loss and percentage of completed repetitions during horizontal leg press and bench press in postmenopausal women. The Journal of Strength & Conditioning Research, 38(9): 1576–15831064-8011http://hdl.handle.net/2183/42126©2024 National Strength and Conditioning Association. Versión aceptada de: Iglesias-Soler, E., Rial-Vázquez, J., Nine, I., Fariñas, J., Revuelta-Lera, B., & García-Ramos, A. (2024).Variability in the relationship between velocity loss and percentage of completed repetitions during horizontal leg press and bench press in postmenopausal women. The Journal of Strength & Conditioning Research, 38(9): 1576–1583This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/. This version of the article has been accepted for publication in The Journal of Strength & Conditioning Research. The Version of Record is available online at DOI: 10.1519/JSC.0000000000004825[Abstract]: This study aimed to analyze the intersubject variability in the relationship between percentage of velocity loss (%VL) and percentage of repetitions performed out of maximum possible (%MNR) in postmenopausal women. Thirty-five postmenopausal active women (58 6 3 years) performed sets leading to muscular failure, completing 10–13 repetitions, in both leg press (LP) and bench press (BP). Mean lift velocity of each repetition was expressed as a percentage of the fastest repetition, and repetitions were quantified as a percentage of the maximum number of repetitions completed in the set. Given the hierarchical structure of the data, %VL–%MNR relationships were fitted by linear mixed model regressions. A significant intersubject variability in the intercept (i.e., %MNR associated with 0%VL) was detected (p , 0.001 in both LP and BP), even when centered values of the completed repetitions were included in the models. The estimated variance in the intercept for LP (117.39; SE: 45.41) was almost double that for BP (67.47; SE: 20.27). The variability observed in the intercept entailed variability in the estimated %MNR for specific %VL values. The use of velocity loss thresholds for estimating the intensity of effort in active postmenopausal women does not overcome uncertainty of more traditional methods.eng©2024 National Strength and Conditioning Association. Versión aceptada de: Iglesias-Soler, E., Rial-Vázquez, J., Nine, I., Fariñas, J., Revuelta-Lera, B., & García-Ramos, A. (2024).Variability in the relationship between velocity loss and percentage of completed repetitions during horizontal leg press and bench press in postmenopausal women. The Journal of Strength & Conditioning Research, 38(9): 1576–1583Velocity-based trainingVelocity lossResistance trainingMenopausal womanLevel of effortExercise monitoringjournal articleopen access