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Race, diet, and body size contribute to skeletal parameters in female adolescents
Author(s) -
Martin Berdine,
Whisner Corrie,
Delany Lauren,
Weaver Connie
Publication year - 2012
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.26.1_supplement.378.3
Subject(s) - anthropometry , demography , medicine , sexual maturity , growth spurt , ethnic group , body mass index , population , physiology , gerontology , biology , endocrinology , environmental health , sociology , anthropology
Multiple parameters contribute to achieving peak bone mass especially during the adolescent growth spurt. Few studies have characterized the association of race/ethnicity, diet, and anthropometric characteristics with skeletal bone mineral content (BMC) of teen girls. This study analyzed data collected from a female multi‐racial population, age 11–15, who participated in 11 residential metabolic studies over a 20 year period. Bone parameters and body composition were measured by dual energy X‐ray absorptiometry (DXA). Habitual dietary intake was based on 3–9 day food records collected before the initiation of the studies. While body size and sexual maturation explained a major portion of the variation in total body BMC, race/ethnicity and diet explained 11 and 9%, respectively when considered as separate variables. When adjusted for body size, sexual maturation, and habitual dietary intake black female teens exhibited greater total body BMC than white, Asian, or Mexican American teens. Racial differences in BMC varied by skeletal site but race/ethnicity and variables representing body size, sexual maturation and diet remained significant at each site. Supported by NICHD RO1HD061908.