Evidence map›Paper›PMID 29472732›Full record

ArticleBiology of sport2017

Is the technical performance of young soccer players influenced by hormonal status, sexual maturity, anthropometric profile, and physical performance?

Alexandre Moreira, Marcelo Massa, Carlos R Thiengo, Rafael Alan Rodrigues Lopes, Marcelo R Lima, Roel Vaeyens, Wesley P Barbosa, Marcelo S Aoki

Abstract read
In one paragraph

Article in Biology of sport, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–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

11 citing papers in PubMed.

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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

8 authors.

Alexandre MoreiraSchool of Physical Education and Sport, University of São Paulo, Brazil.
Marcelo MassaSchool of Arts, Sciences and Humanities, University of São Paulo, Brazil.
Carlos R ThiengoFaculty of Physical Education, University of Campinas, Brazil.
Rafael Alan Rodrigues LopesSchool of Physical Education and Sport, University of São Paulo, Brazil.
Marcelo R LimaPresident Laudo Natel Athlete Development Center - São Paulo Football Club, Brazil.
Roel VaeyensGENT University, Belgium.
Wesley P BarbosaSchool of Arts, Sciences and Humanities, University of São Paulo, Brazil.
Marcelo S AokiSchool of Arts, Sciences and Humanities, University of São Paulo, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to examine the influence of hormonal status, anthropometric profile, sexual maturity level, and physical performance on the technical abilities of 40 young male soccer players during small-sided games (SSGs). Anthropometric profiling, saliva sampling, sexual maturity assessment (Tanner scale), and physical performance tests (Yo-Yo and vertical jumps) were conducted two weeks prior to the SSGs. Salivary testosterone was determined by the enzyme-linked immunosorbent assay method. Technical performance was determined by the frequency of actions during SSGs. Principal component analyses identified four technical actions of importance: total number of passes, effectiveness, goal attempts, and total tackles. A multivariate canonical correlation analysis was then employed to verify the prediction of a multiple dependent variables set (composed of four technical actions) from an independent set of variables, composed of testosterone concentration, stage of pubic hair and genitalia development, vertical jumps and Yo-Yo performance. A moderate-to-large relationship between the technical performance set and the independent set was observed. The canonical correlation was 0.75 with a canonical R

Indexed as

EnduranceHeightPowerTanner scaleTestosteroneWeight

Identifiers

PMID29472732
PMCPMC5819467

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.