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Agreement between dual x-ray absorptiometers using pencil beam and fan beam: indicators of bone health and whole-body plus appendicular tissue composition in adult athletes

2018Journal article Open access
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dc.contributor.authorTavares, Óscar
dc.contributor.authorDuarte, João
dc.contributor.authorCosta, Daniela C.
dc.contributor.authorSilva, P. Sousa e
dc.contributor.authorMartinho, Diogo V.
dc.contributor.authorLus, Leonardo
dc.contributor.authorDuarte-Mendes, Pedro
dc.contributor.authorSantos, João Valente dos
dc.contributor.authorConde, Jorge
dc.contributor.authorCasanova, José
dc.contributor.authorCyrino, Edilson S.
dc.contributor.authorSilva, Manuel Coelho e
dc.date.accessioned2019-07-15T16:29:25Z
dc.date.available2019-07-15T16:29:25Z
dc.date.issued2018
dc.description.abstractOBJECTIVE: The current study was aimed to examine intra-individual variation on indicators of bone health in addition to whole-body plus appendicular tissue measurements using two concurrent assessments based on pencil beam and fan beam dual energy X-ray absorptiometry (DXA) systems in adult athletes from several sports. METHOD: Thirty-two male participants (27.6±10.1 years) were measured on anthropometry including multifrequency bioelectric impedance and air-displacement plethysmography. Bone mineral content (BMC), bone area, fat and lean soft tissue were derived using pencil beam (Lunar DPX-MD+) and fan beam (Lunar iDXA) absorptiometry. Bone mineral density (BMD) was obtained for the femoral neck, trochanter and triangle of ward. Finally, the right thigh was defined as a region of interest (ROI). Analyses comprised intra-class correlation (ICC), Effect size (d) from mean differences of repeated measurements, coefficient of variation (CV) RESULTS: ICC were >0.900 for all measurements. Intra-individual differences were large for BMC (d=1,312; CV=2,7%), bone area (d=1,761; CV=2,7%), fat tissue (d=1,612; CV=11%) and all indicators of appendicular lean soft tissue (d=1,237-1687; CV=2,0-4,1%). A very large difference (d=4,014; CV=8.4%) was diagnosed for lean soft tissue of the ROI. CONCLUSION: Although differences among concurrent instruments for BMC and bone area, the effect size of mean differences was negligible for BMD. Fat and lean soft tissue derived from DXA should be interpreted as reference values (not criterion) due to equipment-related variation, more apparently in the ROI values.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationTAVARES, O. [et al] (2018) - Agreement between dual x-ray absorptiometers using pencil beam and fan beam: indicators of bone health and whole-body plus appendicular tissue composition in adult athletes. Revista da Associação Médica Brasileira. N.º 64, p. 330-338.pt_PT
dc.identifier.doihttp://dx.doi.org/10.1590/1806-9282.64.04.330pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.11/6605
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherRevista da Associação Médica Brasileirapt_PT
dc.relation.publisherversionhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-42302018000400330pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectAbsorptiometrypt_PT
dc.subjectPhotonpt_PT
dc.subjectBone densitypt_PT
dc.subjectBody compositionpt_PT
dc.subjectAthletespt_PT
dc.titleAgreement between dual x-ray absorptiometers using pencil beam and fan beam: indicators of bone health and whole-body plus appendicular tissue composition in adult athletespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage338pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage330pt_PT
oaire.citation.titleRevista da Associação Médica Brasileirapt_PT
oaire.citation.volume64pt_PT
person.familyNameTavares
person.familyNameSousa-e-Silva
person.familyNameMartinho
person.familyNameDuarte-Mendes
person.familyNameValente-dos-Santos
person.familyNameConde
person.familyNameCoelho-e-Silva
person.givenNameÓscar
person.givenNamePaulo
person.givenNameDiogo
person.givenNamePedro
person.givenNameJoão
person.givenNameJorge
person.givenNameManuel
person.identifier1217521
person.identifierhttps://scholar.google.com/citations?pli=1&authuser=1&user=wOuYQqEAAAAJ
person.identifierF-7196-2012
person.identifier.ciencia-idE111-1365-B434
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person.identifier.ciencia-id3319-3E7D-B233
person.identifier.ciencia-idBB19-DC8E-05C7
person.identifier.ciencia-id4718-D1AA-3DBA
person.identifier.ciencia-id9817-ABCE-36C0
person.identifier.ciencia-idA519-0AFE-9566
person.identifier.orcid0000-0002-1437-0307
person.identifier.orcid0000-0001-8642-5947
person.identifier.orcid0000-0003-0825-4032
person.identifier.orcid0000-0001-5055-2696
person.identifier.orcid0000-0003-0980-0269
person.identifier.orcid0000-0002-2225-8569
person.identifier.orcid0000-0001-9016-8779
person.identifier.orcid0000-0003-4512-7331
person.identifier.ridV-1645-2017
person.identifier.scopus-author-id55658768000
person.identifier.scopus-author-id6506510017
person.identifier.scopus-author-id57199322788
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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