Evidence map›Paper›PMID 23945035›Full record

Trial reportBritish journal of sports medicine2014

Can resistance training change the strength, body composition and self-concept of overweight and obese adolescent males? A randomised controlled trial.

Natasha Schranz, Grant Tomkinson, Natalie Parletta, John Petkov, Tim Olds

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in British journal of sports medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 15 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing 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

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

  1. Effectiveness of Resistance Training in People With Down Syndrome: Systematic Review and Meta-Analysis.Journal of applied research in intellectual disabilities : JARID · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Natasha SchranzHealth and Use of Time (HUT) Group, University of South Australia, Adelaide, South Australia, Australia.
Grant TomkinsonHealth and Use of Time (HUT) Group, University of South Australia, Adelaide, South Australia, Australia.
Natalie ParlettaSchool of Population Health, Sansom Institute for Health Research, University of South Australia, Adelaide, South Australia, Australia.
John PetkovHealth and Use of Time (HUT) Group, University of South Australia, Adelaide, South Australia, Australia.
Tim OldsHealth and Use of Time (HUT) Group, University of South Australia, Adelaide, South Australia, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimResistance training is an exercise modality at which overweight and obese adolescents can excel and which can therefore positively affect their psychological well-being. The aim of this study was to determine the effect of a 6-month resistance training intervention on the self-concept strength and body composition of overweight and obese adolescent males.

methods56 overweight and obese males aged 13-17 years were randomly allocated to an Intervention (n=30) or Control (n=26) group. Primary (psychological) and secondary (strength and body composition) outcomes were assessed at baseline as well as at 3 (halfway through the intervention), 6 (immediately postintervention) and 12 months follow-up. Random effects mixed modelling was used to determine the effects of the intervention.

resultsStatistically significant differences between the Intervention and Control groups were observed at 3-month and 6-month assessments for exercise self-efficacy, resistance training confidence and self-esteem. Large increases in strength for the Intervention group, relative to Controls, were also observed with no substantial changes in body composition shown for either group. Values for all variables returned to baseline following completion of the programme.

conclusionsA 6-month resistance training intervention can positively affect the self-concept and strength of overweight and obese adolescent boys.

Indexed as

Resistance TrainingSelf ConceptAdolescentBody CompositionHumansMaleMuscle, SkeletalMuscle StrengthObesityOverweightSelf EfficacySurveys and QuestionnairesAdolescentsChildren's health and exercise

Identifiers

PMID23945035

What OpenQuestion holds

Textmetadata
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.