Evidence map›Paper›PMID 34769755›Full record

SynthesisInternational journal of environmental research and public health2021

Effects of Resistance Training Performed with Different Loads in Untrained and Trained Male Adult Individuals on Maximal Strength and Muscle Hypertrophy: A Systematic Review.

Marcio Lacio, João Guilherme Vieira, Robert Trybulski, Yuri Campos, Derick Santana, José Elias Filho, Jefferson Novaes, Jeferson Vianna, Michal Wilk

Abstract readSystematic Review
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 5 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

27 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Trial
  7. A Resistance Training Program on Patients with Liver Cirrhosis: A Randomized Clinical Trial.International journal of environmental research and public health · 2025
    Trial
  8. Trial
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Half Squat Mechanical Analysis Based on PBT Framework.Bioengineering (Basel, Switzerland) · 2025
    Article
  15. Article
  16. Review
  17. Review
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Marcio LacioPostgraduate Program in Physical Education, Federal University of Juiz de Fora (UFJF), Juiz de Fora 36036-900, Brazil.
João Guilherme VieiraPostgraduate Program in Physical Education, Federal University of Juiz de Fora (UFJF), Juiz de Fora 36036-900, Brazil.ORCID 0000-0002-3860-4630
Robert TrybulskiDepartment of Medical Sciences, The Wojciech Korfanty School of Economics, 40-065 Katowice, Poland.
Yuri CamposPostgraduate Program in Physical Education, Federal University of Juiz de Fora (UFJF), Juiz de Fora 36036-900, Brazil.
Derick SantanaLaboratory of Exercise Physiology and Morphofunctional Evaluation (LABFEX), Granbery Methodist College, Juiz de Fora 36010-359, Brazil.
José Elias FilhoPostgraduate Program in Physical Education, Federal University of Juiz de Fora (UFJF), Juiz de Fora 36036-900, Brazil.ORCID 0000-0002-4251-0290
Jefferson NovaesPostgraduate Program in Physical Education, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro 21941-901, Brazil.
Jeferson ViannaPostgraduate Program in Physical Education, Federal University of Juiz de Fora (UFJF), Juiz de Fora 36036-900, Brazil.ORCID 0000-0003-1594-4429
Michal WilkInstitute of Sport Sciences, Jerzy Kukuczka Academy of Physical Education in Katowice, 40-065 Katowice, Poland.ORCID 0000-0001-5799-6337

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The load in resistance training is considered to be a critical variable for neuromuscular adaptations. Therefore, it is important to assess the effects of applying different loads on the development of maximal strength and muscular hypertrophy. The aim of this study was to systematically review the literature and compare the effects of resistance training that was performed with low loads versus moderate and high loads in untrained and trained healthy adult males on the development of maximal strength and muscle hypertrophy during randomized experimental designs. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines (2021) were followed with the eligibility criteria defined according to participants, interventions, comparators, outcomes, and study design (PICOS): (P) healthy males between 18 and 40 years old, (I) interventions performed with low loads, (C) interventions performed with moderate or high loads, (O) development of maximal strength and muscle hypertrophy, and (S) randomized experimental studies with between- or within-subject parallel designs. The literature search strategy was performed in three electronic databases (Embase, PubMed, and Web of Science) on 22 August 2021.

Indexed as

Resistance TrainingAdolescentAdultHumansHypertrophyMaleMenMuscle, SkeletalMuscle StrengthYoung Adultadult malehigh loadlow loadmorphological adaptationsstrength training

Identifiers

PMID34769755
PMCPMC8582674

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.