title: Sleep deprivation predisposes gujarati Indian adolescents to obesity.
abstract: OBJECTIVE
  Recent studies on various populations indicate that lack of sleep is one of the potential risk factors predisposing the youth to obesity. Since there is a significant rise in obesity among Indian youth and because research indicating the role of sleep in development of obesity among Indian population is scant, the current study was undertaken to assess the effect of sleep duration on adiposity among Gujarati Indian adolescents.
  
  
  METHODS
  A randomized cross-sectional study was done on 489 voluntarily participating Indian adolescents in the age group of 16-19 years. Participants were grouped into two categories 1). Adequate Sleep Duration at Night (more than seven hours, ASDN) and 2) Inadequate Sleep Duration at Night (less than seven hours, IASDN) as reported by the participants. The participants were later assessed for adiposity in terms of BMI, BF %, FM, FMI and waist circumference, meal frequency per day and physical activity status.
  
  
  RESULTS
  In both boys as well as girls, the BMI, BF%, FM and FMI were significantly lower in the ASDN group than the IASDN group. However, there was an insignificant difference in the meal frequency and physical activity status between the ASDN and IASDN group.
  
  
  CONCLUSIONS
  Inadequate sleep duration increases adiposity among Gujarati Indian adolescents but further studies are required to find out the mechanisms through which sleep affects adiposity in this population.
authors.affiliation: Department of Physiology, Pramukhswami Medical College, Karamsad-388 325, Gujarat, India.
authors.forename: Wasim A
authors.initials: WA
authors.lastname: Shaikh
authors.forename: Minal
authors.initials: M
authors.lastname: Patel
authors.forename: Sk
authors.initials: S
authors.lastname: Singh