The relationship between life-style and cardio-metabolic risk indicators in children: the importance of screen time
To examine differences between children with obesity and normal weight children (aged 7–13 years) in terms of physical activity, screen time, food intake and blood parameters indicative of cardio-metabolic risk. Further, to explore the relationship between physical activity, screen time and food intake with cardio-metabolic parameters. Methods:
Forty-three children with obesity were compared with 43 normal weight peers. Physical activity was monitored by accelerometers and screen time and food intake by diaries. Blood parameters indicative of cardio-metabolic risk were analysed. Results:
The group of children with obesity had significantly less vigorous activity (p = 0.013), more daily screen time (p = 0.004) and consumed more fat (p = 0.04) than the group of normal weight children. The former group also demonstrated higher values of triglycerides (p = 0.001), HbA1c (p = 0.009), C-peptide (p = 0.001), had a higher HOMA-R score (p = 0.001), and lower levels of HDL (p = 0.001). After controlling for weight category, regression analyses revealed that screen time was significantly and positively related to the HOMA-R score and C-peptide levels independent of physical activity and intake of fat and sugar. Conclusions:
The results indicate that screen time is an important behavioural factor related to obesity and cardio-metabolic risk indicators in children.
Document Type: Research Article
Affiliations: 1: .Faculty of Psychology, University of Bergen, Bergen, Norway 2: .Section of Paediatrics, Department of Clinical Medicine, University of Bergen, Bergen, Norway 3: .Institute of Medicine, University of Bergen, Bergen, Norway 4: .Norwegian Institute of Public Health, Oslo, Norway 5: .The Department of Clinical Sciences, Intervention and Technology, Division of Pediatrics, Karolinska Institutet, Stockholm, Sweden
Publication date: 2011-02-01