Effects of velocity loss during resistance training on athletic performance, strength gains and muscle adaptations
Fernando Pareja-Blanco,David Rodríguez-Rosell,Luis Sánchez-Medina,Joaquin Sanchis-Moysi,Cecilia Dorado,Ricardo Mora-Custodio,Juan Manuel Yáñez-García,David Morales-Alamo,Ismael Perez-Suarez,Jose A. L. Calbet,Juan José González-Badillo +10 more
TLDR
The progressive accumulation of muscle fatigue as indicated by a more pronounced repetition velocity loss appears as an important variable in the configuration of the resistance exercise stimulus as it influences functional and structural neuromuscular adaptations.Abstract:
We compared the effects of two resistance training (RT) programs only differing in the repetition velocity loss allowed in each set: 20% (VL20) vs 40% (VL40) on muscle structural and functional adaptations. Twenty-two young males were randomly assigned to a VL20 (n = 12) or VL40 (n = 10) group. Subjects followed an 8-week velocity-based RT program using the squat exercise while monitoring repetition velocity. Pre- and post-training assessments included: magnetic resonance imaging, vastus lateralis biopsies for muscle cross-sectional area (CSA) and fiber type analyses, one-repetition maximum strength and full load-velocity squat profile, countermovement jump (CMJ), and 20-m sprint running. VL20 resulted in similar squat strength gains than VL40 and greater improvements in CMJ (9.5% vs 3.5%, P < 0.05), despite VL20 performing 40% fewer repetitions. Although both groups increased mean fiber CSA and whole quadriceps muscle volume, VL40 training elicited a greater hypertrophy of vastus lateralis and intermedius than VL20. Training resulted in a reduction of myosin heavy chain IIX percentage in VL40, whereas it was preserved in VL20. In conclusion, the progressive accumulation of muscle fatigue as indicated by a more pronounced repetition velocity loss appears as an important variable in the configuration of the resistance exercise stimulus as it influences functional and structural neuromuscular adaptations.read more
Citations
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Journal ArticleDOI
Visual Feedback Attenuates Mean Concentric Barbell Velocity Loss and Improves Motivation, Competitiveness, and Perceived Workload in Male Adolescent Athletes.
Jonathon Weakley,Jonathon Weakley,Kyle M. Wilson,Kevin Till,Kevin Till,Dale B. Read,Dale B. Read,Joshua David Darrall-Jones,Joshua David Darrall-Jones,Gregory Roe,Gregory Roe,Padraic J. Phibbs,Padraic J. Phibbs,Ben Jones,Ben Jones +14 more
TL;DR: Providing adolescent male athletes with visual kinematic information while completing resistance training is beneficial for the maintenance of barbell velocity during a training set, potentially enhancing physical performance.
Journal ArticleDOI
Comparison of Velocity-Based and Traditional Percentage-Based Loading Methods on Maximal Strength and Power Adaptations
TL;DR: The VBT intervention induced favorable adaptations in maximal strength and jump height in trained men when compared with a traditional PBT approach, Interestingly, the VBT group achieved these positive outcomes despite a significant reduction in total training volume compared with the PBT group.
Journal ArticleDOI
Velocity Loss as a Critical Variable Determining the Adaptations to Strength Training.
Fernando Pareja-Blanco,Julian Alcazar,Juan Sánchez-Valdepeñas,Pedro J Cornejo-Daza,Francisco Piqueras-Sanchiz,Raúl Mora-Vela,Miguel Sánchez-Moreno,Beatriz Bachero-Mena,Manuel Ortega-Becerra,Luis M. Alegre +9 more
TL;DR: Higher VL thresholds (i.e., VL20 and VL40) maximized hypertrophic adaptations, although an excessive VL during the set may also induce negative neuromuscular adaptations.
Journal ArticleDOI
Relationship Between Velocity Loss and Repetitions in Reserve in the Bench Press and Back Squat Exercises.
David Rodríguez-Rosell,Juan Manuel Yáñez-García,Luis Sánchez-Medina,Ricardo Mora-Custodio,Juan José González-Badillo +4 more
TL;DR: Monitoring repetition velocity can be used to provide a very good estimate of the number of repetitions actually performed and those left in reserve in each exercise set, and thus to more objectively quantify the level of effort incurred during resistance training.
Journal ArticleDOI
Movement Velocity as a Measure of Level of Effort During Resistance Exercise.
Ricardo Morán-Navarro,Alejandro Martínez-Cava,Luis Sánchez-Medina,Ricardo Mora-Rodriguez,Juan José González-Badillo,Jesús G. Pallarés,Jesús G. Pallarés +6 more
TL;DR: By monitoring repetition velocity one can estimate with high accuracy the proximity of muscle failure and, therefore, to more objectively quantify the level of effort and fatigue being incurred during resistance training.
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