Evidence map›Paper›PMID 34310636›Full record

ArticlePloS one2021

Observed and predicted ages at peak height velocity in soccer players.

Robert M Malina, Manuel J Coelho-E-Silva, Diogo V Martinho, Paulo Sousa-E-Siva, Antonio J Figueiredo, Sean P Cumming, Miroslav Králík, Sławomir M Kozieł

Abstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  15. Age and Maturation Matter in Youth Elite Soccer, but Depending on Competitive Level and Gender.International journal of environmental research and public health · 2023
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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.

Robert M MalinaDepartment of Kinesiology and Health Education, University of Texas, Austin, Texas, United States of America.
Manuel J Coelho-E-SilvaUniversity of Coimbra, FCDEF, Coimbra, Portugal.ORCID 0000-0003-4512-7331
Diogo V MartinhoUniversity of Coimbra, FCDEF, Coimbra, Portugal.ORCID 0000-0003-0825-4032
Paulo Sousa-E-SivaUniversity of Coimbra, FCDEF, Coimbra, Portugal.ORCID 0000-0001-8642-5947
Antonio J FigueiredoUniversity of Coimbra, FCDEF, Coimbra, Portugal.ORCID 0000-0001-6956-0514
Sean P CummingDepartment of Health, University of Bath, Bath, United Kingdom.
Miroslav KrálíkFaculty of Science, Department of Anthropology, Masaryk University, Brno, Czech Republic.ORCID 0000-0002-2077-4068
Sławomir M KoziełDepartment of Anthropology, Polish Academy of Sciences, Hirszfeld Institute of Immunology and Experimental Therapy, Wrocław, Poland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of the study was to evaluate predicted maturity offset (time before age at PHV) and age at PHV (chronological age [CA] minus maturity offset) in a longitudinal sample of 58 under-13 club level soccer players in central Portugal for whom ages at PHV were estimated with the SITAR model. Two maturity offset prediction equations were applied: the original equation which requires CA sitting height, estimated leg length, height and weight, and a modified equation which requires CA and height. Predicted maturity offset increased, on average, with CA at prediction throughout the age range considered, while variation in predicted maturity offset and ages at PHV within CA groups was considerably reduced compared to variation in observed ages at offset and at PHV. Predicted maturity offset and ages at PHV were consistently later than observed maturity offset and age at PHV among early maturing players, and earlier than observed in late maturing players. Both predicted offset and ages at PHV with the two equations were, on average, later than observed among players maturing on time. Intra-individual variation in predicted ages at PHV with each equation was considerable. The results for soccer players were consistent with similar studies in the general population and two recent longitudinal studies of soccer players. The results question the utility of predicted maturity offset and age at PHV as valid indicators of maturity timing and status.

Indexed as

AthletesAdolescentAge FactorsAnthropometryAthletic PerformanceBody HeightChildHumansMalePortugalRheologySexual MaturationSoccer

Identifiers

PMID34310636
PMCPMC8312932

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Registered trials

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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.