Energy expenditure adjusted for body composition differentiates constitutional thinness from both normal subjects and anorexia nervosa
- Lang, François
- Bossu, Cécile
- Galusca, Bogdan
- Normand, N.
- Kadem, Meryem
- Frere, D.
- Laville, M.
- Estour, Bruno
DOIAbstract
International audienceConstitutional thinness (CT) is characterized by a low and stable body mass index (BMI) without any hormonal abnormality. To understand the weight steadiness, energetic metabolism was evaluated. Seven CT, seven controls, and six anorexia nervosa (AN) young women were compared. CT and AN had a BMI <16.5 kg/m(2). Four criteria were evaluated: 1) energy balance including diet record, resting metabolic rate (RMR) (indirect calorimetry), total energy expenditure (TEE) (doubly labeled water), physical activity; 2) body composition (dual-energy X-ray absorptiometry); 3) biological markers (leptin, IGF-I, free T3); 4) psychological profile of eating behavior. The normality of free T3 (3.7 +/- 0.5 pmol/l), IGF-I (225 +/- 93 ng/...
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