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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Effects of Cluster Sets and Rest-Redistribution on Mechanical Responses to Back Squats in Trained Men.
James J. Tufano,Jenny A. Conlon,Sophia Nimphius,Lee E. Brown,Alex Petkovic,Justin Frick,G. Gregory Haff +6 more
TL;DR: Data indicate that rest redistribution results in similar average kinetics and kinematics, but if total rest time is redistributed to create shorter but more frequent sets, Kinetics andKinematics may remain more constant.
Journal ArticleDOI
Anodal transcranial direct current stimulation enhances strength training volume but not the force-velocity profile
Carlos Alix-Fages,Amador García-Ramos,Amador García-Ramos,Giancarlo Calderón-Nadal,David Colomer-Poveda,Salvador Romero-Arenas,Miguel Fernández-del-Olmo,Gonzalo Márquez,Gonzalo Márquez +8 more
TL;DR: The application of ANODAL tDCS before a resistance training session increased training volume, enabled the maintenance of higher movement velocities, and reduced RPE values, suggesting that tDCS could be an effective method to enhance resistance-training performance.
Journal ArticleDOI
Acute Effects of Cluster and Rest Redistribution Set Structures on Mechanical, Metabolic, and Perceptual Fatigue During and After Resistance Training: A Systematic Review and Meta-analysis
Ivan Jukic,Amador García Ramos,Amador García Ramos,Eric R. Helms,Michael R. McGuigan,James J. Tufano +5 more
TL;DR: Fundamental differences in the amount of total rest time results in cluster sets generally being more effective than rest redistribution in alleviating fatigue-induced changes during RT, which highlights the importance of classifying them independently in research and in practice.
Journal ArticleDOI
Optimal Training Sequences to Develop Lower Body Force, Velocity, Power, and Jump Height: A Systematic Review with Meta-Analysis
TL;DR: The aim of this systematic review and meta-analysis was to compare the acute and chronic responses of lower body cluster, contrast, complex, and traditional training across a range of athletic performance outcomes.
Journal ArticleDOI
Effect of the level of effort during resistance training on intraocular pressure
Jesús Vera,Raimundo Jiménez,Beatriz Redondo,Alejandro Torrejón,Carlos Gustavo De Moraes,Amador García-Ramos +5 more
TL;DR: A single set of resistance training leading to muscular failure causes an instantaneous and progressive IOP rise in healthy young individuals, which depends on exercise type, but not on participant´s sex.
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