Evidence map›Paper›PMID 30153194›Full record

Trial reportMedicine and science in sports and exercise2019

Resistance Training Volume Enhances Muscle Hypertrophy but Not Strength in Trained Men.

Brad J Schoenfeld, Bret Contreras, James Krieger, Jozo Grgic, Kenneth Delcastillo, Ramon Belliard, Andrew Alto

Abstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Medicine and science in sports and exercise, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 112 papers, 15 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
112citing papers in PubMed, 15 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

112 citing papers in PubMed, 15 syntheses or guidelines pooled it.

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  12. Effects of Attentional Focus on Muscular Endurance: A Meta-Analysis.International journal of environmental research and public health · 2021
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  15. Maximizing Muscle Hypertrophy: A Systematic Review of Advanced Resistance Training Techniques and Methods.International journal of environmental research and public health · 2019
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52 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Brad J SchoenfeldDepartment of Health Sciences, CUNY Lehman College, Bronx, NY.
Bret ContrerasSport Performance Research Institute, AUT University, Auckland, NEW ZEALAND.
James KriegerWeightology, LLC, Redmond, WA.
Jozo GrgicInstitute for Health and Sport (IHES), Victoria University, Melbourne, AUSTRALIA.
Kenneth DelcastilloDepartment of Health Sciences, CUNY Lehman College, Bronx, NY.
Ramon BelliardDepartment of Health Sciences, CUNY Lehman College, Bronx, NY.
Andrew AltoDepartment of Health Sciences, CUNY Lehman College, Bronx, NY.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe purpose of this study was to evaluate muscular adaptations between low-, moderate-, and high-volume resistance training protocols in resistance-trained men.

methodsThirty-four healthy resistance-trained men were randomly assigned to one of three experimental groups: a low-volume group performing one set per exercise per training session (n = 11), a moderate-volume group performing three sets per exercise per training session (n = 12), or a high-volume group performing five sets per exercise per training session (n = 11). Training for all routines consisted of three weekly sessions performed on nonconsecutive days for 8 wk. Muscular strength was evaluated with one repetition maximum (RM) testing for the squat and bench press. Upper-body muscle endurance was evaluated using 50% of subjects bench press 1RM performed to momentary failure. Muscle hypertrophy was evaluated using B-mode ultrasonography for the elbow flexors, elbow extensors, mid-thigh, and lateral thigh.

resultsResults showed significant preintervention to postintervention increases in strength and endurance in all groups, with no significant between-group differences. Alternatively, while all groups increased muscle size in most of the measured sites from preintervention to postintervention, significant increases favoring the higher-volume conditions were seen for the elbow flexors, mid-thigh, and lateral thigh.

conclusionsMarked increases in strength and endurance can be attained by resistance-trained individuals with just three 13-min weekly sessions over an 8-wk period, and these gains are similar to that achieved with a substantially greater time commitment. Alternatively, muscle hypertrophy follows a dose-response relationship, with increasingly greater gains achieved with higher training volumes.

Indexed as

Adaptation, PhysiologicalAdultDietHumansMaleMuscle, SkeletalMuscle StrengthPhysical EnduranceResistance TrainingThighUltrasonographyYoung Adult

Identifiers

PMID30153194
PMCPMC6303131

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.