The relationship of dietary and lifestyle factors to bone mineral indexes in children
| Autor: | Paula Ziegler, Wendy Bounds, Jean D. Skinner, Betty Ruth Carruth |
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| Rok vydání: | 2005 |
| Předmět: |
Male
Longitudinal study medicine.medical_specialty Vitamin K Absorptiometry Photon Sex Factors Negatively associated Bone Density medicine Humans Magnesium Longitudinal Studies Child Exercise Life Style Bone mineral Nutrition and Dietetics business.industry Dietary intake Body Weight Age Factors Stepwise regression Body Height Surgery Diet Calcium Dietary Zinc Lifestyle factors El Niño Bone mineral content Phosphorus Dietary Regression Analysis Female Dietary Proteins business Energy Intake Iron Dietary Food Science Demography |
| Zdroj: | Journal of the American Dietetic Association. 105(5) |
| ISSN: | 0002-8223 |
| Popis: | Objective To identify factors related to children℉s bone mineral indexes at age 8 years, and to assess bone mineral indexes in the same children at ages 6 and 8 years. Design Bone mineral content (BMC [g]) and bone mineral density (BMD; calculated as g/cm 2 ) were measured by dual-energy x-ray absorptiometry (DEXA) in children and their mothers when the children were 8 years of age. A subset of children had an earlier DEXA assessment at age 6 years. Children℉s dietary intake, height, weight, and level of sedentary activity were assessed as part of a longitudinal study from ages 2 months to 8 years. Subjects/setting Fifty-two healthy white children (25 male, 27 female) and their mothers. Main outcome measures Children℉s total BMC and BMD at age 8 years. Statistical analyses performed Correlations and stepwise multiple regression analyses. Results Factors positively related to children℉s BMC at age 8 years included longitudinal intakes (ages 2 to 8 years) of protein, phosphorus, vitamin K, magnesium, zinc, energy, and iron; height; weight; and age ( P ≤.05). Factors positively related to children℉s BMD at age 8 years included longitudinal intakes of protein and magnesium ( P ≤.05). Female sex was negatively associated with BMC and BMD at age 8 years ( P ≤.05). Children℉s bone mineral indexes at ages 6 and 8 years were strongly correlated ( r =0.86, P r =0.92, P Conclusions Because many nutrients are related to bone health, children should consume a varied and nutrient-dense diet. |
| Databáze: | OpenAIRE |
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