000131838 001__ 131838 000131838 005__ 20240219150722.0 000131838 0247_ $$2doi$$a10.1007/s11657-018-0415-y 000131838 0248_ $$2sideral$$a104529 000131838 037__ $$aART-2018-104529 000131838 041__ $$aeng 000131838 100__ $$aOlmedillas, H. 000131838 245__ $$aBone metabolism markers and vitamin D in adolescent cyclists 000131838 260__ $$c2018 000131838 5203_ $$aSummary: This study aimed to describe bone metabolic activity in adolescent competitive cyclists compared to age-matched controls. The main result is that younger subjects present a higher bone turnover than the older ones. Moreover, cyclists under the age of 17 have higher scores on all markers than age-matched controls. Purpose: The purpose of this study was to describe bone metabolic activity in adolescent competitive cyclists compared to age-matched controls. Methods: Twenty-two male adolescent cyclists between 14 and 20 years (y) and 20 age-matched controls participated in this study. Serum osteocalcin (OC), aminoterminal propeptide of type I procollagen (PINP), and ß-isomerized C-telopeptides (ß-CTX) were analyzed by electrochemiluminescence immunoassay (ECLIA); plasma 25 hydroxyvitamin D [25(OH)D] was analyzed by enzyme-linked immunosorbent assay (ELISA). Results: Analysis of variance revealed no significant differences in bone metabolism markers and vitamin D between cyclists and controls. Cyclists over 17 y had a significantly lower concentration in bone formation and resorption biochemical markers compared to cyclists under 17 y (all P < 0.05). Moreover, controls over 17 y presented lower concentration for PINP (P < 0.05) compared to their peers under 17 y. Comparisons between cyclists and controls under 17 y revealed higher concentrations of OC and PINP (P < 0.05) in cyclists. Group interaction by age was found for OC, PINP, and ß-CTX (P < 0.01). Cyclists over 17 y had higher concentrations of [25(OH)D] (P < 0.05) than age-matched controls. Conclusions: The present results support the idea that cycling during adolescence may be associated to a decrease in bone turnover that may affect bone health later in life. 000131838 536__ $$9info:eu-repo/grantAgreement/ES/MEC/21-UPB20-10$$9info:eu-repo/grantAgreement/ES/ISCIII/DPS2008-06999 000131838 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/ 000131838 590__ $$a2.469$$b2018 000131838 591__ $$aORTHOPEDICS$$b24 / 76 = 0.316$$c2018$$dQ2$$eT1 000131838 591__ $$aENDOCRINOLOGY & METABOLISM$$b93 / 145 = 0.641$$c2018$$dQ3$$eT2 000131838 592__ $$a0.813$$b2018 000131838 593__ $$aOrthopedics and Sports Medicine$$c2018$$dQ2 000131838 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000131838 700__ $$0(orcid)0000-0002-1132-5906$$aGonzalez de Agüero, A.$$uUniversidad de Zaragoza 000131838 700__ $$0(orcid)0000-0002-6066-8200$$aRapún-López, M.$$uUniversidad de Zaragoza 000131838 700__ $$0(orcid)0000-0002-4020-0256$$aGracia-Marco, L. 000131838 700__ $$0(orcid)0000-0001-6492-2512$$aGomez-Cabello, A.$$uUniversidad de Zaragoza 000131838 700__ $$0(orcid)0000-0002-6829-0775$$aPradas de la Fuente, F.$$uUniversidad de Zaragoza 000131838 700__ $$0(orcid)0000-0003-0454-653X$$aMoreno, L.A.$$uUniversidad de Zaragoza 000131838 700__ $$0(orcid)0000-0002-7215-6931$$aCasajús, J.A.$$uUniversidad de Zaragoza 000131838 700__ $$0(orcid)0000-0002-4303-4097$$aVicente-Rodríguez, G.$$uUniversidad de Zaragoza 000131838 7102_ $$13001$$2187$$aUniversidad de Zaragoza$$bDpto. Expres.Music.Plást.Corp.$$cÁrea Didáctica Expres.Corporal 000131838 7102_ $$11006$$2255$$aUniversidad de Zaragoza$$bDpto. Fisiatría y Enfermería$$cÁrea Enfermería 000131838 7102_ $$11006$$2245$$aUniversidad de Zaragoza$$bDpto. Fisiatría y Enfermería$$cÁrea Educación Física y Depor. 000131838 773__ $$g13, 11 (2018), [8 pp]$$pArch. osteoporos.$$tArchives of osteoporosis$$x1862-3514 000131838 8564_ $$s703920$$uhttps://zaguan.unizar.es/record/131838/files/texto_completo.pdf$$yVersión publicada 000131838 8564_ $$s2036927$$uhttps://zaguan.unizar.es/record/131838/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000131838 909CO $$ooai:zaguan.unizar.es:131838$$particulos$$pdriver 000131838 951__ $$a2024-02-19-13:28:35 000131838 980__ $$aARTICLE