Evidence map›Paper›PMID 41113468›Full record

ArticleFrontiers in sports and active living2025

A comparison of box-to-box and positional possession styles: selecting an appropriate game format for U13 footballers (a pilot study).

Imants Bleidelis, Signe Luika, Aleksandrs Kolesovs, Behnam Boobani

Abstract read
In one paragraph

Article in Frontiers in sports and active living, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

Imants BleidelisRiga Stradins University, Latvian Academy of Sport Education, Riga, Latvia.
Signe LuikaRiga Stradins University, Latvian Academy of Sport Education, Riga, Latvia.
Aleksandrs KolesovsDepartment of Psychology, The University of Latvia, Riga, Latvia.
Behnam BoobaniRiga Stradins University, Latvian Academy of Sport Education, Riga, Latvia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: This pilot study aimed to examine trends in the use of game zones, group interactions of players participating in a game episode, and the effectiveness of their actions in the completion zone for the age group U13, between the game formats 9 vs. 9 and 11 vs. 11. Methods: Latvian Football Players ( Results: It was found that when choosing between the formats 9 vs. 9 and 11 vs. 11 in the U13 age group, it is possible to expect visible change (based on a medium effect size) in distribution of start and end of game episodes with more often reaching the completion zone, (the 1/3 area of the field where the opponent's goal was located), increasing number of players involved in the game episode, and the increasing number of cases of changing the direction of the attack under 9 vs. 9 format. Conclusion: The results showed that when choosing the format of youth championships, coaches and stakeholders should consider its impact on the formation of game patterns in players.

Indexed as

field zonefootballplayer's effectivenesstactical behavioryouth

Identifiers

PMID41113468
PMCPMC12528163

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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.