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dc.contributor.authorTomlinson, O
dc.contributor.authorBarker, A
dc.contributor.authorFulford, J
dc.contributor.authorWilson, P
dc.contributor.authorOades, P
dc.contributor.authorWilliams, C
dc.date.accessioned2019-12-18T11:01:57Z
dc.date.issued2020-01-12
dc.description.abstractEstimating muscle volume (MV) using variable numbers of cross-sectional area (CSA) slices obtained from magnetic resonance imaging (MRI) introduces error that is known in adults, but not in children and adolescents, whereby body sizes differ due to growth and maturation. Therefore, 15 children and adolescents (11 males, 14.8 ± 2.1 years) underwent MRI scans of the right thigh using a 1.5 T scanner to establish this error. A criterion MV was determined by tracing around and summing all CSAs, with MV subsequently estimated using every second, third, fourth and fifth CSA slice. Bland33 Altman plots identified mean bias and limits of agreement (LoA) between methods. Error rates between 1.0 – 10.4% were seen between criterion and estimated MV. Additional analyses identified an impact of formulae selection, with a cylindrical formula preferred to a truncated cone. To counter high error between criterion and estimated MV due to discrepancies in the number of CSA slices analysed, length-matched criterion volumes were established, with reduced error rates (0.5 – 2.0%) being produced as a result. CSA at 50% thigh length also predicted MV, producing high error (13.8 – 39.6%). Pearson’s correlation coefficients determined relationships between error and measures of body size/composition, with all body size/composition measures being correlated (r = -0.78 – 0.86, p < 0.05) with the error between criterion and estimated MV. To conclude, MV can be accurately estimated using fewer CSA slices. However, the associated error must be considered when calculating MV in children and adolescents, as body size biases estimates.en_GB
dc.description.sponsorshipNIHRen_GB
dc.identifier.citationPublished online 12 January 2020en_GB
dc.identifier.doi10.1080/17461391.2019.1707292
dc.identifier.grantnumberCRF/2016/10027en_GB
dc.identifier.urihttp://hdl.handle.net/10871/40129
dc.language.isoenen_GB
dc.publisherTaylor & Francis for European College of Sport Scienceen_GB
dc.rights.embargoreasonUnder embargo until 12 January 2020 in compliance with publisher policyen_GB
dc.rights© 2020 European College of Sport Science
dc.subjectadolescenceen_GB
dc.subjectcross-sectional areaen_GB
dc.subjectmusculoskeletalen_GB
dc.subjectlimits of agreementen_GB
dc.subjectrespiratory disease.en_GB
dc.title.alternativeAccuracy of volumetric calculation methods in youthen_GB
dc.titleQuantification of thigh muscle volume in children and adolescents using magnetic resonance imagingen_GB
dc.typeArticleen_GB
dc.date.available2019-12-18T11:01:57Z
dc.identifier.issn1536-7290
dc.descriptionThis is the author accepted manuscript. The final version is available from Taylor & Francis via the DOI in this recorden_GB
dc.identifier.journalEuropean Journal of Sport Scienceen_GB
dc.rights.urihttp://www.rioxx.net/licenses/all-rights-reserveden_GB
dcterms.dateAccepted2019-12-13
rioxxterms.versionAMen_GB
rioxxterms.licenseref.startdate2019-12-13
rioxxterms.typeJournal Article/Reviewen_GB
refterms.dateFCD2019-12-18T10:12:14Z
refterms.versionFCDAM
refterms.panelCen_GB


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