79774 20200716101428.0 doi 10.3390/nu11051178 sideral 112689 ART-2019-112689 eng (orcid)0000-0002-6066-8200 Rapun-Lopez, M. Universidad de Zaragoza May Young Elite Cyclists Have Less Efficient Bone Metabolism? 2019 Access copy available to the general public Unrestricted The purpose of this work was to describe changes in metabolic activity in the bones of young male competitive cyclists (CYC) as compared with age-matched controls (CON) over a one-year period of study. Eight adolescent male cyclists aged between fourteen and twenty, and eight age-matched controls participated in this longitudinal study. Serum osteocalcin (OC), amino-terminal propeptide of type I procollagen (PINP), beta-isomerized C-telopeptides (-CTx) and plasma 25 hydroxyvitamin D [25(OH)D], were investigated by an electrogenerated chemiluminescence immunoassay. Analysis of variance revealed no significant differences in formation and resorption markers between cyclists and controls. Within the groups, both CYC and CON showed decreased OC at -30% and -24%, respectively, and PINP where the figures were -28% and -30% respectively (all p < 0.05). However, only the CYC group showed a decrease in [25(OH)D], lower by 11% (p < 0.05). The similarity in the concentrations of markers in cyclists and controls seems to indicate that cycling does not modify the process of bone remodeling. The decrease in vitamin D in cyclists might be detrimental to their future bone health. info:eu-repo/grantAgreement/ES/DGA/SGI-216177 info:eu-repo/grantAgreement/ES/MEC/21-UPB20-10 info:eu-repo/grantAgreement/ES/ISCIII/DPS2008-06999 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 4.546 2019 1.329 2019 NUTRITION & DIETETICS 17 / 89 = 0.191 2019 Q1 T1 Nutrition and Dietetics 2019 Q1 Food Science 2019 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Olmedillas, H. Gonzalez-Aguero, A. Gomez-Cabello, A. (orcid)0000-0002-6829-0775 Pradas de la Fuente, F. Universidad de Zaragoza (orcid)0000-0003-0454-653X Moreno, L.A. Universidad de Zaragoza (orcid)0000-0002-7215-6931 Casajus, J.A. Universidad de Zaragoza (orcid)0000-0002-4303-4097 Vicente-Rodriguez, G. Universidad de Zaragoza 3001 187 Universidad de Zaragoza Dpto. Expres.Music.Plást.Corp. Área Didáctica Expres.Corporal 1006 255 Universidad de Zaragoza Dpto. Fisiatría y Enfermería Área Enfermería 1006 245 Universidad de Zaragoza Dpto. Fisiatría y Enfermería Área Educación Física y Depor. 11, 5 (2019), 1178 [9 pp] NUTRIENTS Nutrients 2072-6643 782688 http://zaguan.unizar.es/record/79774/files/texto_completo.pdf Versión publicada 97189 http://zaguan.unizar.es/record/79774/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:79774 articulos driver 2020-07-16-08:46:40 ARTICLE