Evidence map›Paper›PMID 33795911›Full record

ArticleBiology of sport2021

Players' physical performance in LaLiga across the season: insights for competition continuation after COVID-19.

Diego Brito de Souza, Jaime González-García, Roberto López-Del Campo, Ricardo Resta, Javier Martínez Buldú, Michal Wilk, Juan Del Coso

Abstract read
In one paragraph

Article in Biology of sport, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
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  4. Article
  5. Article
  6. Review
  7. Article
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  9. Article
  10. Injury Incidence Increases after COVID-19 Infection: A Case Study with a Male Professional Football Team.International journal of environmental research and public health · 2022
    Article
  11. International journal of environmental research and public health · 2022
    Article
  12. Article
  13. Observational
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  15. Article
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  17. Observational
  18. Article
  19. Comparative Analysis of Soccer Performance Intensity of the Pre-Post-Lockdown COVID-19 in LaLiga™.International journal of environmental research and public health · 2021
    Article
  20. Running Patterns inFrontiers in physiology · 2021
    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

7 authors.

Diego Brito de SouzaExercise Physiology Laboratory, Camilo José Cela University, Madrid, Spain.
Jaime González-GarcíaExercise Physiology Laboratory, Camilo José Cela University, Madrid, Spain.
Roberto López-Del CampoDepartment of competitions and Mediacoach, LaLiga, Madrid, Spain.
Ricardo RestaDepartment of competitions and Mediacoach, LaLiga, Madrid, Spain.
Javier Martínez BuldúComplex Systems Group, Rey Juan Carlos University, Madrid, Spain.
Michal WilkInstitute of Sport Sciences, Jerzy Kukuczka Academy of Physical Education in Katowice, Poland.
Juan Del CosoCentre for Sport Studies, Rey Juan Carlos University, Fuenlabrada, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Due to the COVID-19 outbreak, professional football players competing in LaLiga were confined at home for ~8 weeks and then they were allowed to train to prepare the first competitive match for 4 weeks. As the duration of summer break in the prior four seasons of LaLiga (from 2015-2016 to 2018-2019) was of similar length to the suspension of the championship due to COVID-19 (~12 weeks), we have analysed the running performance of teams competing in LaLiga in these four seasons to anticipate players' physical performance after the resumption of the competition. The analysis includes the average running distance per game for each of the 38 matchdays that compose LaLiga. One-way ANOVA revealed that there was a main effect of the matchday on total running distance per match (p = 0.001), and in the distance covered between 14.0 and 20.9 km/h (p < 0.001), between 21.0 and 23.9 km/h (p < 0.001) and at above 24.0 km/h (p < 0.001). Overall, the post-hoc analysis revealed that the running patterns progressively increased during the first 8-10 matchdays and then reached a plateau which was significantly different to matchday-1 (p < 0.05). This analysis reveals that, in the prior four competitive seasons of LaLiga, players' physical performance was lower at the beginning of the season and the teams needed approximately 8-10 matchdays to reach a steady state running performance. These data suggest that football players will progressively increase their performance across the 11 matchdays remaining to complete LaLiga.

Indexed as

AthletesFootballLockdownMatchRunningSoccer

Identifiers

PMID33795911
PMCPMC7996388

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.