This 2-year prospective study examined associations among bone mineral acquisition and physical, maturational, and lifestyle variables during the pubertal transition in healthy girls. Forty-five girls, initially 10.5+/-0.6 years, participated. Body composition and bone mineral content (BMC) at the spine and total body (TB) were assessed at baseline and annually thereafter using dual-energy X-ray absorptiometry (DXA). Nutrient intakes were assessed using 3-day diet records and a calcium food frequency questionnaire (FFQ), physical activity by questionnaire, sexual maturation using Tanner's stages of breast and pubic hair maturation, growth by height and weight, and eating attitudes using the children's Eating Attitudes Test (Children's EAT). Mean children's EAT subscale scores (dieting, oral control [OC], and bulimia) were stable over time. Median split of OC subscale scores was used to form high and low OC groups. Groups had similar body composition, dietary intake, activity, and Tanner stage at baseline and 2 years. Using height, weight, and Tanner breast stage as covariates, girls with low OC scores had greater TB BMC at baseline (1452+/-221 g vs. 1387+/-197 g; p = 0.030) and 2 years (2003+/-323 g vs. 1909+/-299 g; p = 0.049) and greater lumbar spine (LS) BMC at 2 years (45.2+/-8.8 g vs. 41.2+/-9.6 g; p = 0.042). In multiple regression analysis, OC score predicted baseline, 2 years, and 2-year change in TB and spinal BMC, contributing 0.9-7.6% to explained variance. Calcium intake predicted baseline, 2 years, and 2-year change in TB BMC, explaining 1.6-5.3% of variance. We conclude that both OC and habitual calcium intake may influence bone mineral acquisition.
Prior JC bone mineral acquisition peripubertal girls, eating attitudes calcium intake bone mineral content puberty, oral control subscale Children's EAT bone density, calcium intake bone mineral content DXA adolescent girls, pubertal transition bone mineral acquisition prospective study, Tanner stage bone mineral content peripubertal females, eating disorder risk bone health growing girls, habitual calcium intake spine total body BMC, Barr Prior calcium FFQ bone mineral girls, two-year prospective study bone mineral acquisition lifestyle variables
PMID 11341340 11341340 DOI 10.1359/jbmr.2001.16.5.940 10.1359/jbmr.2001.16.5.940
Cite this article
S I Barr, M A Petit, Y M Vigna, & J C Prior (2001). Eating attitudes and habitual calcium intake in peripubertal girls are associated with initial bone mineral content and its change over 2 years. Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research, 16(5), 940-947. https://doi.org/10.1359/jbmr.2001.16.5.940
S I Barr, M A Petit, Y M Vigna, J C Prior. Eating attitudes and habitual calcium intake in peripubertal girls are associated with initial bone mineral content and its change over 2 years. J Bone Miner Res. 2001;16(5):940-947. doi:10.1359/jbmr.2001.16.5.940
S I Barr, et al. "Eating attitudes and habitual calcium intake in peripubertal girls are associated with initial bone mineral content and its change over 2 years." Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research, vol. 16, no. 5, 2001, pp. 940-947.
Keywords
Calcium, Dietary
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