Evidence map›Paper›PMID 34068150›Full record

ArticleInternational journal of environmental research and public health2021

The Effect of Contextual Variables on Match Performance across Different Playing Positions in Professional Portuguese Soccer Players.

Joel Barrera, Hugo Sarmento, Filipe Manuel Clemente, Adam Field, António J Figueiredo

Abstract read
In one paragraph

Article 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 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing 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

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

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  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

5 authors.

Joel BarreraFaculty of Sport Sciences and Physical Education, University of Coimbra, 3000-248 Coimbra, Portugal.ORCID 0000-0002-9559-5048
Hugo SarmentoFaculty of Sport Sciences and Physical Education, University of Coimbra, 3000-248 Coimbra, Portugal.ORCID 0000-0001-8681-0642
Filipe Manuel ClementeEscola Superior Desporto e Lazer, Instituto Politécnico de Viana do Castelo, Rua Escola Industrial e Comercial de Nun'Álvares, 4900-347 Viana do Castelo, Portugal.ORCID 0000-0001-9813-2842
Adam FieldSchool of Human and Health Sciences, University of Huddersfield, Huddersfield HD1 3DH, UK.ORCID 0000-0002-2600-6182
António J FigueiredoFaculty of Sport Sciences and Physical Education, University of Coimbra, 3000-248 Coimbra, Portugal.ORCID 0000-0001-6956-0514

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study investigated the position-specific physical demands of professional Portuguese players. The effects of situational variables on the physical performance demands were also analysed (match location, match half and match result). Match performance observations were collected using Global Navigation Satellite System devices across 11 matches during a competitive season (2019-2020). Data were analysed according to five playing positions: goalkeepers (

Indexed as

Athletic PerformanceRunningSoccerAccelerationHumansPortugalfootballmonitoringperformanceprofessional team

Identifiers

PMID34068150
PMCPMC8152996

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.