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J Clin Densitom. 2008 Apr-Jun;11(2):260-5. doi: 10.1016/j.jocd.2007.12.019. Epub 2008 Feb 25.

Peak bone density in Croatian women: variations at different skeletal sites.

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  • 1Institute for Medical Research and Occupational Health, University of Zagreb, Zagreb, Croatia.


It is known that different skeletal sites have different peak bone mass at different times and lose bone at different rates. The purpose of the study was to assess bone mineral density (BMD) in healthy female student population (N=220), aged 18-25 yr and to analyze whether young women of that age have already started to lose the bone mass at the trabecular and cortical parts of skeleton. The influence of dietary intake and physical activity on their bone mass was also assessed. BMD was measured, using dual-energy X-ray absorptiometry technique, in spine, proximal femur, and distal third of the radius and in total body. Significant negative correlation between age and bone mass was found in all skeletal regions (p<0.05 spine; p<0.0001 total femur; and p<0.01 total body) except in cortical part of the radius. Peak bone mass in young Croatian women was achieved before the age of 20, but later in the long-bone cortical skeleton, where BMD continued to increase after mid-20s. The BMD values are comparable with those from National Health and Nutrition Examination Survey study, except for the cortical part of the radius, where it is significantly lower. Body weight and physical activity were the most significant positive predictors of bone density in all measured sites.

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