European Child & Adolescent Psychiatry

, Volume 19, Issue 2, pp 135–141

Does inhibitory control capacity in overweight and obese children and adolescents predict success in a weight-reduction program?

Authors

    • Institute of Medical PsychologyUniversity Medical Centre, Justus-Liebig University of Giessen
  • Özgür Albayrak
    • Department of Child and Adolescent PsychiatryUniversity of Duisburg-Essen
  • Johannes Hebebrand
    • Department of Child and Adolescent PsychiatryUniversity of Duisburg-Essen
  • Wilfried Pott
    • Red Cross Children’s Hospital Siegen
Original Contribution

DOI: 10.1007/s00787-009-0049-0

Cite this article as:
Pauli-Pott, U., Albayrak, Ö., Hebebrand, J. et al. Eur Child Adolesc Psychiatry (2010) 19: 135. doi:10.1007/s00787-009-0049-0

Abstract

It has been assumed that inhibitory control capacity might influence the success of overweight or obese subjects in reducing weight. However, empirical research on this association is scarce. The present study, therefore, examines whether success in an outpatient weight-reduction program for children and adolescents can be predicted by pre-intervention inhibitory control capacity. The study sample consisted of 111 overweight and obese children and adolescents (7.5–15 years) who attended an outpatient weight-reduction program of 1 year’s duration. Inhibitory control was assessed by two computerized neuropsychological procedures, a Go-NoGo and an interference task. Principal component analysis revealed “impulsivity” (fast but less valid reactions) and “inattention” (slow and highly variable reaction times) component. Those who succeeded in the intervention (losing more than 5% of BMI-SDS; n = 63) scored significantly higher in the first component than those who failed, while controlling for pre-intervention BMI-SDS, age, gender, and maternal education level. The association was moderated by age. Although in younger children no effect was found, in adolescents high “impulsivity” predicted success. Our result supports the scant evidence for a role of inhibitory control. However, further studies are required to substantiate that weak inhibitory control, and thus high reactivity to external cues, entails a better outcome in behavior modification interventions.

Keywords

Executive functionsCognitive controlObesityWeight reduction programImpulsivityInattentionNeuropsychological assessment

Copyright information

© Springer-Verlag 2009