title: [Intake and energy metabolism in a sample of overweight and obese Chilean adolescents].
abstract: BACKGROUND
  In the last decades, a seven to nine fold increase in the prevalence of teenage obesity and overweight has occurred.
  
  
  OBJECTIVE
  To assess energy intake and metabolism in a sample of overweight and obese adolescents.
  
  
  METHODS
  In a sample of 113 overweight and obese Chilean adolescents (aged 13 to 16 years, 67 females) we studied anthropometry, body composition by deuterium isotope dilution water, resting energy expenditure by indirect calorimetry and 24-h diet and physical activity recalls.
  
  
  RESULTS
  Most participants (87% of men and 67.2% of women) had an intake that was adequate compared to requirements (fAO/WHO 2005). However, 82.6% of men and 83.6% of women showed reduced energy expenditure. The sample was classified as sedentary, with a physical activity level of 1.29.
  
  
  CONCLUSIONS
  In our sample of overweight and obese adolescents there was a sedentary behavior, resulting in low energy expenditure that would explain a sustained caloric retention. Preventive and therapeutic interventions should encourage the increase in physical activity.
authors: Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Chile. mreyes@inta.uchile.cl
authors: Marcela
authors: M
authors: Reyes J
authors: Erick
authors: E
authors: Díaz B
authors: Lydia
authors: L
authors: Lera M
authors: Raquel
authors: R
authors: Burrows A
mesh_terms: D000293:Adolescent; D015992:Body Mass Index; D002153:Calorimetry, Indirect; D002677:Chile / Q000453:epidemiology; D002149:Energy Intake / Q000502:physiology*; D004734:Energy Metabolism / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity; D009751:Nutritional Requirements; D009765:Obesity / Q000453:epidemiology / Q000378:metabolism*; D050177:Overweight; D057185:Sedentary Behavior