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dc.contributor.authorAmorim, Tânia
dc.contributor.authorMetsios, Giorgos S.
dc.contributor.authorNevill, Alan M.
dc.contributor.authorWyon, Matthew
dc.contributor.authorFlouris, Andreas D.
dc.contributor.authorMaia, José
dc.contributor.authorTeixeira, E
dc.contributor.authorMachado, José Carlos
dc.contributor.authorMarques, Franklim
dc.contributor.authorKoutedakis, Yiannis
dc.date.accessioned2017-08-09T12:26:33Z
dc.date.available2017-08-09T12:26:33Z
dc.date.issued2017-07-05
dc.identifier.citationAmorim T, Metsios GS, Wyon M, Nevill AM, Flouris AD, Maia J, et al. (2017) Bone mass of female dance students prior to professional dance training: A cross-sectional study. PLoS ONE 12(7): e0180639. https://doi.org/10.1371/journal. pone.0180639
dc.identifier.issn1932-6203
dc.identifier.doi10.1371/journal.pone.0180639
dc.identifier.urihttp://hdl.handle.net/2436/620573
dc.description.abstractArticle Authors Metrics Comments Related Content Abstract Introduction Methods Results Discussion Conclusions Acknowledgments References Reader Comments (0) Media Coverage (0) Figures Abstract Background Professional dancers are at risk of developing low bone mineral density (BMD). However, whether low BMD phenotypes already exist in pre-vocational dance students is relatively unknown. Aim To cross-sectionally assess bone mass parameters in female dance students selected for professional dance training (first year vocational dance students) in relation to aged- and sex-matched controls. Methods 34 female selected for professional dance training (10.9yrs ±0.7) and 30 controls (11.1yrs ±0.5) were examined. Anthropometry, pubertal development (Tanner) and dietary data (3-day food diary) were recorded. BMD and bone mineral content (BMC) at forearm, femur neck (FN) and lumbar spine (LS) were assessed using Dual-Energy X-Ray Absorptiometry. Volumetric densities were estimated by calculating bone mineral apparent density (BMAD). Results Dancers were mainly at Tanner pubertal stage I (vs. stage IV in controls, p<0.001), and demonstrated significantly lower body weight (p<0.001) and height (p<0.01) than controls. Calorie intake was not different between groups, but calcium intake was significantly greater in dancers (p<0.05). Dancers revealed a significantly lower BMC and BMD values at all anatomical sites (p<0.001), and significantly lower BMAD values at the LS and FN (p<0.001). When adjusted for covariates (body weight, height, pubertal development and calcium intake), dance students continued to display a significantly lower BMD and BMAD at the FN (p<0.05; p<0.001) at the forearm (p<0.01). Conclusion Before undergoing professional dance training, first year vocational dance students demonstrated inferior bone mass compared to controls. Longitudinal models are required to assess how bone health-status changes with time throughout professional training.
dc.language.isoen
dc.publisherPLOS one
dc.relation.urlhttp://journals.plos.org/plosone/article?id=10.1371/journal.pone.0180639
dc.subjectBone density
dc.subjectanthropometry
dc.subjectmenarche
dc.subjectballet
dc.subjectbody weight
dc.titleBone mass of female dance students prior to professional dance training: A cross-sectional study
dc.typeJournal article
dc.identifier.journalPLOS one
dc.date.accepted2017-06-19
rioxxterms.funderUniversity of Wolverhampton
rioxxterms.identifier.projectUoW090817MW
rioxxterms.versionVoR
rioxxterms.licenseref.urihttps://creativecommons.org/CC BY-NC-ND 4.0
rioxxterms.licenseref.startdate2017-08-09
dc.source.volume12
dc.source.issue7
dc.source.beginpage1
dc.source.endpage11
refterms.dateFCD2018-10-19T09:10:47Z
refterms.versionFCDVoR
refterms.dateFOA2017-08-09T00:00:00Z
html.description.abstractArticle Authors Metrics Comments Related Content Abstract Introduction Methods Results Discussion Conclusions Acknowledgments References Reader Comments (0) Media Coverage (0) Figures Abstract Background Professional dancers are at risk of developing low bone mineral density (BMD). However, whether low BMD phenotypes already exist in pre-vocational dance students is relatively unknown. Aim To cross-sectionally assess bone mass parameters in female dance students selected for professional dance training (first year vocational dance students) in relation to aged- and sex-matched controls. Methods 34 female selected for professional dance training (10.9yrs ±0.7) and 30 controls (11.1yrs ±0.5) were examined. Anthropometry, pubertal development (Tanner) and dietary data (3-day food diary) were recorded. BMD and bone mineral content (BMC) at forearm, femur neck (FN) and lumbar spine (LS) were assessed using Dual-Energy X-Ray Absorptiometry. Volumetric densities were estimated by calculating bone mineral apparent density (BMAD). Results Dancers were mainly at Tanner pubertal stage I (vs. stage IV in controls, p<0.001), and demonstrated significantly lower body weight (p<0.001) and height (p<0.01) than controls. Calorie intake was not different between groups, but calcium intake was significantly greater in dancers (p<0.05). Dancers revealed a significantly lower BMC and BMD values at all anatomical sites (p<0.001), and significantly lower BMAD values at the LS and FN (p<0.001). When adjusted for covariates (body weight, height, pubertal development and calcium intake), dance students continued to display a significantly lower BMD and BMAD at the FN (p<0.05; p<0.001) at the forearm (p<0.01). Conclusion Before undergoing professional dance training, first year vocational dance students demonstrated inferior bone mass compared to controls. Longitudinal models are required to assess how bone health-status changes with time throughout professional training.


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