Longitudinal effects of swimming on bone in adolescents: A pQCT and DXA study

Gomez-Bruton, A. ; Gonzalez-Aguero, A. (Universidad de Zaragoza) ; Matute-Llorente, A. (Universidad de Zaragoza) ; Gomez-Cabello, A. ; Casajus, J.A. (Universidad de Zaragoza) ; Vicente-Rodríguez, G. (Universidad de Zaragoza)

Resumen: The aims of the present study were, firstly, to evaluate areal bone mineral density (aBMD), bone strength and structure during a swimming season and compare them to those of normo-active controls (CG), and secondly to ascertain whether practising an additional weight-bearing sport other than swimming might improve bone. Twenty-three swimmers who only swam (SWI-PURE; 14 males, 9 females), 11 swimmers who combined swimming with an additional weight-bearing sport (SWI-SPORT; 8 males, 3 females) and 28 controls (CG; 16 males, 12 females) participated in the present study. aBMD was assessed with dual energy X-ray (DXA). Bone mass, area, structure and strength of the non-dominant tibia and radius were measured with peripheral quantitative computed tomography (pQCT). Measurements were performed at the beginning of the swimming season and 8 months later. The only difference among groups for DXA and pQCT variables was found for arm aBMD, which was higher in the SWI-SPORT than in the CG group at both pre- and post-evaluation. Group by time interactions (GxT) were found for trochanter aBMD when comparing SWI-SPORT to CG and SWI-SPORT to SWI-PURE, favouring in both cases SWI-SPORT. No GxT were found for the radius. For the tibia, GxT were found between SWI-SPORT and CG and between SWI-PURE and CG, in both cases favouring the swimmers. A season of swimming does not confer any additional benefits to aBMD, but may confer minor benefits to structure and mass. Complementing swimming with a weight-bearing activity is beneficial to bone.

Idioma: Inglés

DOI: 10.5114/biolsport.2017.69824

Año: 2017

Publicado en: BIOLOGY OF SPORT 34, 4 (2017), 361-370
ISSN: 0860-021X

Originalmente disponible en: Texto completo de la revista

Factor impacto JCR: 1.729 (2017)

Categ. JCR: SPORT SCIENCES rank: 51 / 81 = 0.63 (2017) - Q3 - T2

Factor impacto SCIMAGO: 0.641 - Orthopedics and Sports Medicine (Q2) - Physical Therapy, Sports Therapy and Rehabilitation (Q2) - Physiology (medical) (Q3) - Sports Science (Q3)

Financiación: info:eu-repo/grantAgreement/ES/MEC/AP-2012-02854
Financiación: info:eu-repo/grantAgreement/ES/MINECO/BES-2012-051888
Financiación: info:eu-repo/grantAgreement/ES/MINECO/DEP2011-29093

Tipo y forma: Article (Published version)

Área (Departamento): Área Educación Física y Depor. (Dpto. Fisiatría y Enfermería)