Evidence map›Paper›PMID 42620310›Full record

ArticleFrontiers in psychology2026

Effect of a theory-based coach education program on the objectively assessed motivational climate in grassroots football across four European countries: results from the Promoting Adolescent Physical Activity (PAPA) project.

Yannis S Tzioumakis, Damien Tessier, Nathan Smith, Priscila Fabra López, Charalambos Krommidas, Nikos Comoutos, Panagiotis Keramidas, Paul R Appleton, Philippe Sarrazin, Isabel Balaguer and 4 more

Abstract read
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In one paragraph

Article in Frontiers in psychology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

14 authors.

Yannis S TzioumakisDepartment of Physical Education and Sport Science, University of Thessaly, Trikala, Greece.
Damien TessierSENS, Université Grenoble Alpes, Grenoble, France.
Nathan SmithUniversity of Coventry, Coventry, United Kingdom.
Priscila Fabra LópezDepartment of Psychology, Universidad Europea de Valencia, Valencia, Spain.
Charalambos KrommidasDepartment of Physical Education and Sport Science, University of Thessaly, Trikala, Greece.
Nikos ComoutosDepartment of Physical Education and Sport Science, University of Thessaly, Trikala, Greece.
Panagiotis KeramidasDepartment of Physical Education and Sport Science, University of Thessaly, Trikala, Greece.
Paul R AppletonSchool of Sport and Exercise Sciences, Manchester Metropolitan University, Manchester, United Kingdom.
Philippe SarrazinSENS, Université Grenoble Alpes, Grenoble, France.
Isabel BalaguerDepartment of Social Psychology, Faculty of Psychology and Speech Therapy, University of Valencia, Valencia, Spain.
Nikos DigelidisDepartment of Physical Education and Sport Science, University of Thessaly, Trikala, Greece.
Eleanor QuestedCurtin University, Perth, WA, Australia.
Athanasios G PapaioannouDepartment of Physical Education and Sport Science, University of Thessaly, Trikala, Greece.
Joan L DudaSchool of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: This study examined the longitudinal effects of the Methods: Sixty-eight coaches from four countries (England, France, Spain, and Greece) were randomly assigned to either the intervention or control group. Coaches' behaviors were assessed at three time points during the season using a validated observational system based on motivational theories. Results: A series of linear and quadratic multilevel models revealed that, compared to the control group, intervention coaches demonstrated a significant reduction in disempowering behaviors (i.e., ego-involving climate) across the season and a temporary increase (assessed 1 month post-intervention) in features of an empowering climate (i.e., autonomy support and relatedness support). Conclusion: Findings highlight the training program's short- and long-term impacts and point to the need for continued support to sustain positive coaching practices and reduce the occurrence of negative coaching behaviors.

Indexed as

Achievement Goal Theorycoach trainingempowering coachingmotivational climateobservationself-determination theoryyouth football

Identifiers

PMID42620310
PMCPMC13485734

What OpenQuestion holds

Textmetadata
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.