Evidence map›Paper›PMID 41285992›Full record

ArticleScientific reports2025

School-level variation in physical fitness outcomes among children and adolescents.

Dario Novak, Arunas Emeljanovas, Rockli Kim, Soohyeon Ko, S V Subramanian

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

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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

3 citing papers in PubMed.

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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.

Dario NovakFaculty of Kinesiology, University of Zagreb, Horvaćanski zavoj 15, Zagreb, 10 000, Croatia. dnovak@kif.hr.
Arunas EmeljanovasInstitute of Sport Science and Innovations, Lithuanian Sports University, Kaunas, Lithuania.
Rockli KimInterdisciplinary Program in Precision Public Health, Department of Public Health Sciences, Graduate School of Korea University, Seoul, Republic of Korea.
Soohyeon KoDepartment of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
S V SubramanianDepartment of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Physical fitness is one of the key indicators of overall health in youth and plays an important role in decreasing the risk of a number of chronic conditions. There has been limited research on the relationship between school-level factors and young people's physical fitness, with no studies examining school-level variation in physical fitness outcomes for children and adolescents in Croatian schools. The primary aim of this article is to examine school-level variation in a number of health and performance/skill-related physical fitness outcomes. Specifically, we tested the following hypotheses: H1: When variation in physical fitness outcomes is partitioned across schools, counties, and regions, the largest contextual variation will be attributable to the school level; H2: School-level variation in physical fitness outcomes will remain substantial even after adjusting for individual-level covariates such as sex and class, and H3: School-level variation in physical fitness outcomes will be consistently high across both elementary and secondary schools. A total of 15,106 children and adolescents from elementary and secondary schools in Croatia participated in this study. They were tested in the following areas: body size, coordination, speed, agility, flexibility, strength, power and cardio. The multilevel analysis revealed that the largest contextual variation in physical fitness outcomes is attributable to the school level, underscoring the critical role that schools play in shaping students' physical fitness. Even after adjusting for individual-level covariates such as sex and class (grade), substantial variation between schools remained. Finally, we observed that school-level variation in physical fitness outcomes was consistently high across both elementary and secondary schools. The findings suggest that there is a need for comprehensive, multi-tiered interventions designed to guarantee that every student can access high-quality physical education and ample opportunities for physical activity.

Indexed as

Physical FitnessSchoolsAdolescentChildCroatiaExerciseFemaleHumansMaleAdolescenceChildrenHealth behaviorMultilevel modellingPhysical fitness

Identifiers

PMID41285992
PMCPMC12764873

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LicenceCC BY-NC-ND
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Registered trials

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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.