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
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Impact of resistance training sets performed until muscular failure with different loads on intraocular pressure and ocular perfusion pressure.
Jesús Vera,Raimundo Jiménez,Beatriz Redondo,Alejandro Torrejón,Carlos Gustavo De Moraes,Amador García-Ramos,Amador García-Ramos +6 more
TL;DR: It is argued that the use of heavy loads, when training to muscular failure, should be discouraged in order to avoid acute intraocular pressure fluctuations, with greater changes when heavier loads are used.
Journal ArticleDOI
Resistance Training to Failure vs. Not to Failure: Acute and Delayed Markers of Mechanical, Neuromuscular, and Biochemical Fatigue.
Jorge M González-Hernández,Jorge M González-Hernández,Amador García-Ramos,Amador García-Ramos,David Colomer-Poveda,Asta Tvarijonaviciute,José J. Cerón,Pedro Jiménez-Reyes,Gonzalo Márquez,Gonzalo Márquez +9 more
TL;DR: The results support the nonfailure protocol to reduce peripheral fatigue and muscle damage, whereas the central fatigue does not seem to be affected by the set configuration.
Journal ArticleDOI
The Effect of Load and Volume Autoregulation on Muscular Strength and Hypertrophy: A Systematic Review and Meta-Analysis
TL;DR: In this article , the effect of volume autoregulation with velocity loss thresholds ≤ 25% compared to > 25% on 1RM strength and CSA hypertrophy was investigated.
Journal ArticleDOI
Perception of changes in bar velocity in resistance training: Accuracy levels within and between exercises.
TL;DR: The systematic underestimation error in the squat suggests that a correction factor may increase PCV accuracy in this exercise, and gradual increments in the absolute error suggest that PCV may be better suited for sets of fewer repetitions and wider velocity-loss threshold ranges.
Journal ArticleDOI
Bench Press at Full Range of Motion Produces Greater Neuromuscular Adaptations Than Partial Executions After Prolonged Resistance Training
TL;DR: Martínez-Cava et al. as discussed by the authors found that full-bench press at full range of motion produces greater neuromuscular adaptations than partial executions after prolonged resistance training.
References
More filters
PatentDOI
Measurement of protein using bicinchoninic acid
TL;DR: This new method maintains the high sensitivity and low protein-to-protein variation associated with the Lowry technique and demonstrates a greater tolerance of the bicinchoninate reagent toward such commonly encountered interferences as nonionic detergents and simple buffer salts.
Journal ArticleDOI
Muscle Fiber Types: How Many and What Kind?
TL;DR: The purpose of the present communication is to point out some of the problems involved in the classification of fibers and to add new information of value in the analysis of human biopsy material.
Journal ArticleDOI
The adaptations to strength training : morphological and neurological contributions to increased strength.
TL;DR: The gains in strength with HRST are undoubtedly due to a wide combination of neurological and morphological factors, although there is contrary evidence suggesting no change in cortical or corticospinal excitability.
Journal ArticleDOI
Muscular adaptations in response to three different resistance-training regimens: specificity of repetition maximum training zones.
Gerson E. R. Campos,Thomas J Luecke,Heather K Wendeln,Kumika Toma,Fredrick C. Hagerman,Thomas F. Murray,Kerry E. Ragg,Nicholas A. Ratamess,William J. Kraemer,Robert S. Staron +9 more
TL;DR: Low and intermediate RM training appears to induce similar muscular adaptations, at least after short-term training in previously untrained subjects, and both physical performance and the associated physiological adaptations are linked to the intensity and number of repetitions performed, and thus lend support to the strength–endurance continuum.
Journal ArticleDOI
Compatibility of high-intensity strength and endurance training on hormonal and skeletal muscle adaptations.
William J. Kraemer,John F. Patton,Scott E. Gordon,Everett A. Harman,Michael R. Deschenes,K. Reynolds,Robert U. Newton,N. T. Triplett,Joseph E. Dziados +8 more
TL;DR: It is indicated that the combination of strength and endurance training results in an attenuation of the performance improvements and physiological adaptations typical of single-mode training.