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Titre du document / Document title

Do sporting activities convey benefits to bone mass throughout the skeleton?

Auteur(s) / Author(s)

NEVILL Alan M. (1) ; HOLDER Roger L. (2) ; STEWART Arthur D. (3) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) School of Sport, Performing Arts and Leisure, University of Wolverhampton, Walsall Campus, Gorway Road, Walsall WS1 3BD, ROYAUME-UNI
(2) School of Mathematics and Statistics, University of Birmingham, Edgbaston, Birmingham B15 2TT, ROYAUME-UNI
(3) School of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, ROYAUME-UNI

Résumé / Abstract

It is well known that sport and exercise play an important role in stimulating site-specific bone mineral density (BMD). However, what is less well understood is how these benefits dissipate throughout the body. Hence, the aim of the present study was to compare the BMD (recorded at nine sites throughout the skeleton) of 106 male athletes (from nine sports) with that of 15 male non-exercising age-matched controls. Given that BMD is known to increase with body mass and peak with age, multivariate and univariate analyses of covariance were performed to compare the BMD of the nine sports groups with controls (at all sites) using body mass and age as covariates. Our results confirmed a greater adjusted BMD in the arms of the upper-body athletes, the right arm of racket players and the legs of runners (compared with controls), supporting the site-specific nature (i.e. specific to the externally loaded site) of the bone remodelling response (all P<0.01). However, evidence that bone mass acquisition is not just site-specific comes from the results of the rugby players, strength athletes, triathletes and racket players. The rugby players' adjusted BMD was the greatest of all sports groups and greater than controls at all nine sites (all P<0.01), with differences ranging from 8% greater in the left arm to 21% in the lumbar spine. Similarly, the strength athletes' adjusted BMD was superior to that of controls at all sites (P < 0.05) except the legs. The adjusted BMD of the triathletes was significantly greater than that of the controls in both the arms and the legs as well as the thoracic and lumbar spine. The racket players not only had significantly greater right arm BMD compared with the controls but also a greater BMD of the lumbar spine, the pelvis and legs. In contrast, the low-strain, low-impact activities of keep-fit, cycling and rowing failed to benefit BMD compared with the age-matched controls. These results suggest that sporting activities involving high impact, physical contact and/or rotational forces or strains are likely to convey significant benefits not only to the loaded sites, but also to other unloaded peripheral and axial sites throughout the skeleton.

Revue / Journal Title

Journal of sports sciences    ISSN  0264-0414 

Source / Source

2004, vol. 22, no7, pp. 645-650 [6 page(s) (article)] (19 ref.)

Langue / Language

Anglais

Editeur / Publisher

Taylor & Francis, Abingdon, ROYAUME-UNI  (1983) (Revue)

Mots-clés anglais / English Keywords

Osteoarticular system

;

Sport

;

Human

;

Models

;

Multivariate analysis

;

X ray

;

Bone mineral density

;

Bone

;

Skeleton

;

Bone mass

;

Mots-clés français / French Keywords

Système ostéoarticulaire

;

Sport

;

Homme

;

Modèle

;

Analyse multivariable

;

Rayon X

;

Densité minérale osseuse

;

Os

;

Squelette

;

Masse osseuse

;

Mots-clés espagnols / Spanish Keywords

Sistema osteoarticular

;

Deporte

;

Hombre

;

Modelo

;

Análisis multivariable

;

Rayos X

;

Masa mineral ósea

;

Hueso

;

Esqueleto

;

Masa oseosa

;

Mots-clés d'auteur / Author Keywords

bone mineral density

;

dual X-ray absorptiometry

;

multivariate analysis of variance and covariance

;

proportional allometric model

;

Localisation / Location

INIST-CNRS, Cote INIST : 20279, 35400011627305.0060

Nº notice refdoc (ud4) : 16013391



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