Prediction of the Maximum Number of Repetitions and Repetitions in Reserve From Barbell Velocity

García-Ramos, Amador; Torrejón, Alejandro; Feriche, Belén; Morales-Artacho, Antonio J.; Pérez-Castilla, Alejandro; Padial, Paulino; Haff, G. Gregory

doi:10.1123/ijspp.2017-0302

Cited by 58 publications

(65 citation statements)

References 19 publications

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“…All subjects were informed about the purpose and test procedures and signed a written informed consent form before participating. The present study was approved by the Research Ethics Committee of "Hospitales Universitarios Virgen Macarena-Virgen del Rocío" (Reference: 1547-N- 19), in accordance with the Declaration of Helsinki.…”

Section: Subjectsmentioning

confidence: 99%

“…17,18 Secondly, using only the velocity attained at a given %1RM is not a proper method to predict the MNR that can be completed with such load. 19 However, the velocity loss (VL) incurred within the set, calculated as the relative difference between the fastest repetition velocity and the last repetition velocity of the set, 7 has shown strong correlations (R 2 = .96) with the percentage of completed repetitions with respect to the MNR. 5,20 Accordingly, VL can be used to accurately determine the percentage of the MNR that has been completed in the set.…”

Section: Introductionmentioning

confidence: 99%

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Effects of velocity loss in the bench press exercise on strength gains, neuromuscular adaptations, and muscle hypertrophy

Pareja‐Blanco

Alcázar

Cornejo-Daza

et al. 2020

Scandinavian Med Sci Sports

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This study aimed to compare the effects of four velocity-based training (VBT) programs in bench press (BP) between a wide range of velocity loss (VL) thresholds-0% (VL0), 15% (VL15), 25% (VL25), and 50% (VL50)-on strength gains, neuromuscular adaptations, and muscle hypertrophy. Methods: Sixty-four resistance-trained young men were randomly assigned into four groups (VL0, VL15, VL25, and VL50) that differed in the VL allowed in each set. Subjects followed a VBT program for 8-weeks using the BP exercise. Before and after the VBT program the following tests were performed: (a) cross-sectional area (CSA) measurements of pectoralis major (PM) muscle; (b) maximal isometric test; (c) progressive loading test; and (d) fatigue test. Results: Significant group x time interactions were observed for CSA (P < .01) and peak root mean square in PM (peak RMS-PM, P < .05). VL50 showed significantly greater gains in CSA than VL0 (P < .05). Only the VL15 group showed significant increases in peak RMS-PM (P < .01). Moreover, only VL0 showed significant gains in the early rate of force development (RFD, P = .05), while VL25 and VL50 improved in the late RFD (P ≤ .01-.05). No significant group × time interactions were found for any of the dynamic strength variables analyzed, although all groups showed significant improvements in all these parameters. Conclusion: Higher VL thresholds allowed for a greater volume load which maximized muscle hypertrophy, whereas lower VL thresholds evoked positive neuromuscular-related adaptations. No significant differences were found between groups for strength gains, despite the wide differences in the total volume accumulated by each group.

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Section: Subjectsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of velocity loss in the bench press exercise on strength gains, neuromuscular adaptations, and muscle hypertrophy

Pareja‐Blanco

Alcázar

Cornejo-Daza

et al. 2020

Scandinavian Med Sci Sports

View full text Add to dashboard Cite

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“…It is well documented that a large inter-individual variability (CV ≥ 15%) exists for the XRM in the Smith machine BP exercise performed against a range of relative loads (50-85% 1RM) [11,26]. Several studies have tried to identify the sources of this inter-individual variability [11,[27][28][29].…”

Section: Introductionmentioning

confidence: 99%

The Bench Press Grip Width Does Not Affect the Number of Repetitions Performed at Different Velocity Loss Thresholds

Pérez-Castilla

Jukić

Haff

et al. 2021

IJERPH

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This study aimed (I) to compare the number of repetitions that can be completed to failure (XRM) and before reaching a 15%, 30%, or 45% velocity loss threshold (XVLT) in the bench press exercise performed using different grip widths, and (II) to examine the inter-individual variability in the percentage of completed repetitions with respect to the XRM when the set volume is prescribed based on a fixed number of repetitions (FNR) and several velocity loss thresholds (VLT). Nineteen men performed four separate sessions in a random order where there was a single set of repetitions completed to failure against 75% of the one-repetition maximum during the Smith machine bench press exercise using a narrow, medium, wide, or self-selected grip widths. The XRM (p = 0.545) and XVLTs (p ≥ 0.682) were not significantly affected by grip width. A high and comparable inter-individual variability in the percentage of completed repetitions with respect to the XRM was observed when using both an FNR (median CV = 24.3%) and VLTs (median CV = 23.5%). These results indicate that Smith machine bench press training volume is not influenced by the grip width and that VLTs do not allow a more homogeneous prescription of the set volume with respect to the XRM than the traditional FNR.

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“…VBT is a novel method that has also become popular as a means of autoregulating both resistance training intensity and volume [21]. Training intensity is adjusted based on manipulating the load lifted within a session and the observation that a very strong inverse relationship exists between the load lifted as a percentage of an individual's maximum and barbell velocity across a range of both upper [39,64] and lower body [65,66] exercises. Researchers have used this relationship to translate training programs that are commonly expressed as a percentage of an individual's 1RM into corresponding velocity ranges [5].…”

Section: Within-session Autoregulation Methods: Velocity-based Trainingmentioning

confidence: 99%

“…The central premise of VBT is that the resistive load can be prescribed and manipulated with velocity ranges which target a desired physical quality, rather than as a percentage of a pre-determined 1RM. It has been hypothesised that this practice could account for daily fluctuations in performance and thereby enhances the overall training stimulus [39]. Recent studies provide support for an enhanced training stimulus with results demonstrating superior improvements in both maximal strength and CMJ performance for individuals following a VBT protocol compared to those following a percentage-based programme [12,40].…”

Section: The Development Of Autoregulation Of Trainingmentioning

confidence: 99%

Autoregulation in Resistance Training: Addressing the Inconsistencies

et al. 2020

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Autoregulation is a process that is used to manipulate training based primarily on the measurement of an individual’s performance or their perceived capability to perform. Despite being established as a training framework since the 1940s, there has been limited systematic research investigating its broad utility. Instead, researchers have focused on disparate practices that can be considered specific examples of the broader autoregulation training framework. A primary limitation of previous research includes inconsistent use of key terminology (e.g., adaptation, readiness, fatigue, and response) and associated ambiguity of how to implement different autoregulation strategies. Crucially, this ambiguity in terminology and failure to provide a holistic overview of autoregulation limits the synthesis of existing research findings and their dissemination to practitioners working in both performance and health contexts. Therefore, the purpose of the current review was threefold: first, we provide a broad overview of various autoregulation strategies and their development in both research and practice whilst highlighting the inconsistencies in definitions and terminology that currently exist. Second, we present an overarching conceptual framework that can be used to generate operational definitions and contextualise autoregulation within broader training theory. Finally, we show how previous definitions of autoregulation fit within the proposed framework and provide specific examples of how common practices may be viewed, highlighting their individual subtleties.

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Prediction of the Maximum Number of Repetitions and Repetitions in Reserve From Barbell Velocity

Cited by 58 publications

References 19 publications

Effects of velocity loss in the bench press exercise on strength gains, neuromuscular adaptations, and muscle hypertrophy

Effects of velocity loss in the bench press exercise on strength gains, neuromuscular adaptations, and muscle hypertrophy

The Bench Press Grip Width Does Not Affect the Number of Repetitions Performed at Different Velocity Loss Thresholds

Autoregulation in Resistance Training: Addressing the Inconsistencies

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