Evidence map›Paper›PMID 34069919›Full record

ArticleInternational journal of environmental research and public health2021

The Positive Relationship between Moderate-to-Vigorous Physical Activity and Bone Mineral Content Is Not Mediated by Free Leptin Index in Prepubertal Children: The PANIC Study.

Annie M Constable, Josie E Porter, Danielle Benger, Dimitris Vlachopoulos, Alan R Barker, Sarah A Moore, Sonja Soininen, Eero A Haapala, Kate Westgate, Soren Brage and 3 more

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2021. 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
0.2field-weighted citation impact, top 44% of its field
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 citations in OpenAlex.

  1. Special Issue on Health, Physical Activity, and Performance in Youth.International journal of environmental research and public health · 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

13 authors at 5 institutions in 4 countries.

Annie M ConstableChildren's Health and Exercise Research Centre, Sport and Health Sciences, University of Exeter, Exeter EX1 1TX, UK.ORCID 0000-0003-1635-1473
Josie E PorterChildren's Health and Exercise Research Centre, Sport and Health Sciences, University of Exeter, Exeter EX1 1TX, UK.
Danielle BengerChildren's Health and Exercise Research Centre, Sport and Health Sciences, University of Exeter, Exeter EX1 1TX, UK.
Dimitris VlachopoulosChildren's Health and Exercise Research Centre, Sport and Health Sciences, University of Exeter, Exeter EX1 1TX, UK.ORCID 0000-0003-1556-715X
Alan R BarkerChildren's Health and Exercise Research Centre, Sport and Health Sciences, University of Exeter, Exeter EX1 1TX, UK.ORCID 0000-0001-8610-5417
Sarah A MooreSchool of Health and Human Performance, Dalhousie University, Halifax, NS B3H 4R2, Canada.ORCID 0000-0003-3712-0199
Sonja SoininenInstitute of Biomedicine, Kuopio Campus, University of Eastern Finland, FI-70211 Kuopio, Finland.ORCID 0000-0002-2082-8652
Eero A HaapalaInstitute of Biomedicine, Kuopio Campus, University of Eastern Finland, FI-70211 Kuopio, Finland.
Kate WestgateMRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge CB2 0SL, UK.
Soren BrageMRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge CB2 0SL, UK.
Ricardo R AgostineteLaboratory of InVestigation in Exercise (LIVE), Department of Physical Education, Sao Paulo State University (UNESP), Presidente Prudente 19060-900, Brazil.
Romulo A FernandesLaboratory of InVestigation in Exercise (LIVE), Department of Physical Education, Sao Paulo State University (UNESP), Presidente Prudente 19060-900, Brazil.
Timo A LakkaInstitute of Biomedicine, Kuopio Campus, University of Eastern Finland, FI-70211 Kuopio, Finland.
University of Eastern Finland · FIUniversity of Exeter · GBUniversidade Estadual Paulista (Unesp) · BRUniversity of Cambridge · GBDalhousie University · CA

Funding

Department of Health IS-BRC-1215-20014Medical Research Council MC_UU_00006/4Medical Research Council MC_UU_12015/3
6 · The paper itself

Abstract

purposeModerate-to-vigorous physical activity (MVPA) positively influences bone mineral content (BMC) in prepubertal children, but it is unknown whether this relationship is partially mediated by free leptin index. The aim of this study was to examine whether the relationship between MVPA and total body less head (TBLH) BMC is mediated or moderated by free leptin index in prepubertal children.

methodsWe performed a cross-sectional analysis on 401 children (194 girls) from baseline examinations of the Physical Activity and Nutrition in Childhood Study. We applied the four-way decomposition mediation analysis method to assess whether free leptin index, measured from fasted blood samples, mediated the relationship between accelerometer-measured MVPA and TBLH BMC measured by dual-energy X-ray absorptiometry.

resultsMVPA had a positive controlled direct effect on TBLH BMC in girls and boys (β = 0.010 to 0.011,

conclusionOur study indicates that MVPA positively influences TBLH BMC through pathways not related to free leptin index in predominantly normal-weight prepubertal children, likely primarily through mechanical loading. The relationships between MVPA, free leptin index and TBLH BMC may be influenced by other factors such as pubertal status and adiposity, so it is unknown whether these observations extend to overweight and obese children at different stages of puberty.

Indexed as

Bone DensityLeptinAbsorptiometry, PhotonChildCross-Sectional StudiesExerciseFemaleHumansMaleLeptinaccelerometerybone masschildhoodDXAfree leptin indexgrowthprepubertal age

Identifiers

PMID34069919
PMCPMC8157575
OpenAlexW3160908891

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.