PMID: 18198073Jan 17, 2008Paper

Nutritional intake and bone mineral density in female adolescents

Acta Médica Portuguesa
Manuela LeitePedro Moreira

Abstract

Adolescence is a critical time in skeletal development, during which the amount of bone gained along with the subsequent rate of bone loss have a crucial impact on an individual's total bone mass in adulthood and old age. Factors believed to influence bone accretion and peak bone mass include adequate nutritional intake, namely for calcium. However, the findings of several studies have raised questions about the benefit of the total dietary calcium consumption for young adult bone health. The objective of this study was to evaluate the association between nutritional intake, namely calcium, and bone mineral density in female teenagers. The study design was a cross-sectional analysis and data derived from a school-based survey of adolescents from high schools. In all, the study sample included 254 female adolescents with ages between 15 and 17 years. The questionnaire was anonymous and confidential, and provided information on the following variables: bone mineral density (BMD), evaluated in the calcaneus by ultrasound through the Sahara Clinical Bone Sonometer from Hologic; weight and height, measured according to international standards; nutritional intake assessed by a food-frequency questionnaire developed by the Epidemiolog...Continue Reading

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