Peak bone mass

Détails

ID Serval
serval:BIB_A076EA7E616D
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Synthèse (review): revue aussi complète que possible des connaissances sur un sujet, rédigée à partir de l'analyse exhaustive des travaux publiés.
Collection
Publications
Titre
Peak bone mass
Périodique
Osteoporosis International
Auteur(s)
Bonjour  J. P., Theintz  G., Law  F., Slosman  D., Rizzoli  R.
ISSN
0937-941X (Print)
Statut éditorial
Publié
Date de publication
1994
Volume
4 Suppl 1
Pages
7-13
Notes
Journal Article
Research Support, Non-U.S. Gov't
Review
Résumé
Peak bone mass, which can be defined as the amount of bony tissue present at the end of the skeletal maturation, is an important determinant of osteoporotic fracture risk. Measurement of bone mass development. The bone mass of a given part of the skeleton is directly dependent upon both its volume or size and the density of the mineralized tissue contained within the periosteal envelope. The techniques of single-1 and dural-energy photon or X-ray absorptiometry measure the so-called 'areal' or 'surface' bone mineral density (BMD), a variable which has been shown to be directly related to bone strength. Bone mass gain during puberty. During puberty the gender difference in bone mass becomes expressed. This difference appears to be essentially due to a more prolonged bone maturation period in males than in females, with a larger increase in bone size and cortical thickness. Puberty affects bone size much more than the volumetric mineral density. There is no significant sex difference in the volumetric trabecular density at the end of pubertal maturation. During puberty, the accumulation rate in areal BMD at both the lumbar spine and femoral neck levels increases to four- to sixfold over a 3- and 4-year period in females and males, respectively. Change in bone mass accumulation rate is less marked in long bone diaphyses. There is an asynchrony between the gain in statural height and bone mass growth. This phenomenon may be responsible for the occurrence of a transient period of a relative increase in bone fragility that may account for the pattern of fracture incidence during adolescence.(ABSTRACT TRUNCATED AT 250 WORDS)
Mots-clé
Aging/physiology Bone Density/*physiology Bone Development/*physiology Bone Matrix/physiology Female Humans Male Nutrition Physiology Puberty Sex Factors
Pubmed
Web of science
Création de la notice
25/01/2008 11:31
Dernière modification de la notice
03/03/2018 20:05
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