Evidence map›Paper›PMID 42104463›Full record

ArticleBMC psychology2026

Determinants of environmentally related physical activity in adolescents: integration of self-determination and planned behavior theories.

Yannis Theodorakis, Charalampos Krommidas, Aristea Karamitrou, Aikaterini Violatzi, Maria Angeli, Evangelos Galanis, Mary Hassandra, Nikos Comoutos

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In one paragraph

Article in BMC psychology, 2026. 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
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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

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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

8 authors.

Yannis TheodorakisDepartment of Physical Education and Sport Science, School of Physical Education, Sport & Dietetics, University of Thessaly, Karies, Trikala, 42100, Greece. theodorakis@pe.uth.gr.
Charalampos KrommidasDepartment of Physical Education and Sport Science, School of Physical Education, Sport & Dietetics, University of Thessaly, Karies, Trikala, 42100, Greece.
Aristea KaramitrouDepartment of Physical Education and Sport Science, School of Physical Education, Sport & Dietetics, University of Thessaly, Karies, Trikala, 42100, Greece.
Aikaterini ViolatziDepartment of Physical Education and Sport Science, School of Physical Education, Sport & Dietetics, University of Thessaly, Karies, Trikala, 42100, Greece.
Maria AngeliDepartment of Physical Education and Sport Science, School of Physical Education, Sport & Dietetics, University of Thessaly, Karies, Trikala, 42100, Greece.
Evangelos GalanisDepartment of Physical Education and Sport Science, School of Physical Education, Sport & Dietetics, University of Thessaly, Karies, Trikala, 42100, Greece.
Mary HassandraDepartment of Physical Education and Sport Science, School of Physical Education, Sport & Dietetics, University of Thessaly, Karies, Trikala, 42100, Greece.
Nikos ComoutosDepartment of Physical Education and Sport Science, School of Physical Education, Sport & Dietetics, University of Thessaly, Karies, Trikala, 42100, Greece.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectiveEco-friendly behaviors (EFB) represent an important domain at the intersection of health, quality of life, and environmental sustainability. The present study focuses on two related subdomains: PA-related energy-saving behaviors (PA-RESB) and energy-saving behaviors (ESB). More specifically, this study tested an integrated Self-Determination Theory (SDT) and Theory of Planned Behavior (TPB) model to identify the psychological determinants of PA-RESB and ESB among adolescents.

methodsA cross-sectional sample of 391 Greek adolescents (12-15 years) completed measures of basic psychological need satisfaction (autonomy, competence, relatedness), TPB constructs (attitudes, subjective norms, perceived behavioral control, intentions), and PA-RESB and ESB. Two structural equation models were tested (one for each outcome).

resultsIn both models, competence had the strongest association with TPB constructs, showing positive associations with attitudes, subjective norms, and perceived behavioral control. Across models, perceived behavioral control and attitudes significantly predicted intention, and intention significantly predicted PA-RESB and ESB. The direct perceived behavioral control→behavior paths were not significant.

conclusionIntegrating SDT and TPB helps explain adolescents' eco-friendly behaviors in both physically active and household energy-saving domains. Interventions that strengthen perceived competence and perceived behavioral control may support stronger intentions and greater engagement in PA-RESB and the ESB.

Indexed as

Adolescent BehaviorExerciseIntentionPersonal AutonomyAdolescentChildCross-Sectional StudiesFemaleGreeceHumansMaleTheory of Planned BehaviorEco-friendly behaviorEnergy conservationPhysical activitySelf-determination theoryTheory of planned behavior

Identifiers

PMID42104463
PMCPMC13536537

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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.