Disordered-eating attitudes in relation to bone mineral density and markers of bone turnover in overweight adolescents.
J Adolesc Health
; 45(1): 33-9, 2009 Jul.
Article
em En
| MEDLINE
| ID: mdl-19541247
ABSTRACT
PURPOSE:
To examine the relationships between cognitive eating restraint and both bone mineral density (BMD) and markers of bone turnover in overweight adolescents.METHODS:
One hundred thirty-seven overweight (BMI 39.1 +/- 6.8 kg/m(2)) African American and Caucasian adolescent (age = 14.4 +/- 1.4 years) girls (66.4%) and boys were administered the Eating Disorder Examination (EDE) interview and Eating Inventory (EI) questionnaire and underwent dual energy X-ray absorptiometry (DXA) to measure total lumbar spine BMD. Markers of bone formation (serum bone specific alkaline phosphatase and osteocalcin), bone resorption (24-hour urine N-telopeptides), and stress (urine free cortisol) were measured.RESULTS:
After accounting for the contribution of demographics, height, weight, serum 25-hydroxyvitamin D, and depressive symptoms, adolescents' weight concern, as assessed by interview, was a significant contributor to the model of urine free cortisol (beta = .30, p < .05). Shape concern, as also assessed by interview, was significantly associated with lumbar spine bone mineral density (beta = -.15, p < .05). Dietary restraint was not a significant predictor in any of these models.CONCLUSIONS:
These findings suggest that among severely overweight adolescents, dissatisfaction with shape and weight may be salient stressors. Future research is required to illuminate the relationship between bone health and disordered-eating attitudes in overweight adolescents.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Osso e Ossos
/
Atitude Frente a Saúde
/
Transtornos da Alimentação e da Ingestão de Alimentos
/
Densidade Óssea
/
Sobrepeso
Tipo de estudo:
Prognostic_studies
/
Qualitative_research
Limite:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
J Adolesc Health
Assunto da revista:
PEDIATRIA
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Estados Unidos