Relative Importance of Lean and Fat Mass on Bone Mineral Density in Iranian Children and Adolescents.

Background: Body weight is made up of lean and fat mass and both are involved in growth and development. Impression of these two components in bone density accrual has been controversial.

Objectives: The aim of this study was to evaluate the relationship between fat and lean mass and bone density in Iranian children and adolescents.

Body composition reference percentiles of healthy Iranian children and adolescents in southern Iran.

Background: The prevalence of childhood obesity has risen greatly worldwide. However, assessment of obesity among children and adolescents is further complicated by the changes occurring in the body composition during the growth. The aim of this study is to create gender-specific percentile curves for total body fat percentage (TBFP), total body fat mass (TBFM), fat mass index (FMI), and fat free mass index (FFMI) in healthy Iranian children and adolescents.

Normative data and percentile curves of bone mineral density in healthy Iranian children aged 9-18 years.

Unlabelled: We provide the first reference values for bone mineral content and bone mineral density according to age and sex in Iranian children and adolescents. The prevalence of hypovitaminosis D was high, and levels of physical activity were low in our sample. Multiple regression analyses showed age, BMI, and Tanner stage to be the main indicators of bone mineral apparent density.