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Published on: May 8, 2018
Associations between inhibitory control and body weight in German primary school children
Tamara Wirt1, Verena Hundsdörfer2, Anja Schreiber1
1Division of Sports and Rehabilitation Medicine, Ulm University Medical Centre, Frauensteige 6, 89075 Ulm, Germany.
Insights
Children with lower inhibitory control are at higher risk for obesity. This study found that poor self-control in primary school children predicts higher body weight, even beyond other factors.
Area of Science:
- Child Psychology
- Pediatric Health
- Behavioral Science
Background:
- Inhibitory control deficits are a suspected risk factor for overweight.
- Limited research exists on this link in non-clinical childhood populations.
Purpose of the Study:
- To examine the relationship between inhibitory control and body weight in a large sample of primary school children.
- To determine if inhibitory control predicts body weight independently of other factors.
Main Methods:
- Utilized baseline data from 498 primary school children (grades 1-2) in Germany.
- Assessed inhibitory control using a Go-Nogo task.
- Measured height and weight to calculate BMI percentiles; collected sociodemographic and behavioral data via parental questionnaire.
Main Results:
- Inhibitory control was significantly associated with body weight.
- Lower inhibitory control predicted higher body weight, even after accounting for parental education, migration background, parental weight, TV consumption, and breakfast habits.
- Obese children showed significantly lower inhibitory control compared to non-overweight and overweight peers.
Conclusions:
- Deficits in inhibitory control are a significant risk factor for pediatric obesity.
- This suggests that improving self-control may be a potential strategy for preventing childhood obesity.
Abstract:
Deficits in inhibitory control are supposed to be a risk factor for overweight but literature concerning childhood and beyond the clinical setting is scarce. The objective of this study was to investigate the role of inhibitory control in regards to body weight in a large non-clinical sample of primary school children. Baseline data of 498 children (1st and 2nd grade; 7.0 ± 0.6 years; 49.8% boys) participating in a school-based intervention study in Germany were used. Children performed a Go-Nogo-task to assess inhibitory control. Height and weight were collected and converted to BMI percentiles based on national standards. Relevant influencing factors (sociodemographic data, health characteristics of parents, children's health behaviour) were assessed via parental questionnaire. Inhibitory control was significantly associated with body weight and contributed to the statistical prediction of body weight above and beyond parent education, migration background, parent weight, TV consumption and breakfast habits. Moreover, obese children displayed significantly lower inhibitory control compared to non-overweight and overweight children. The findings suggest that deficits in inhibitory control constitute a risk factor for paediatric obesity.
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