HELENA Study Group – please see Appendix.
Physical activity does not attenuate the obesity risk of TV viewing in youth
Article first published online: 21 FEB 2012
© 2012 The Authors. Pediatric Obesity © 2012 International Association for the Study of Obesity
Volume 7, Issue 3, pages 240–250, June 2012
How to Cite
Rey-López, J. P., Ruiz, J. R., Vicente-Rodríguez, G., Gracia-Marco, L., Manios, Y., Sjöström, M., De Bourdeaudhuij, I., Moreno, L. A. and HELENA Study Group (2012), Physical activity does not attenuate the obesity risk of TV viewing in youth. Pediatric Obesity, 7: 240–250. doi: 10.1111/j.2047-6310.2011.00021.x
- Issue published online: 4 MAY 2012
- Article first published online: 21 FEB 2012
- Manuscript Accepted: 22 NOV 2011
- Manuscript Revised: 25 OCT 2011
- Manuscript Received: 11 AUG 2011
- European Community Sixth RTD Framework Programme. Grant Number: FOOD-CT-2005–007034
- Spanish Ministry of Health: Maternal, Child Health and Development Network. Grant Number: RD08/0072
- Spanish Ministry of Education. Grant Numbers: EX-2008-0641, DEP2007-29933-E, AP2006-02464
- Swedish Council for Working Life and Social Research
- ALPHA study
- Fundación Cuenca Villoro (Spain)
This study aimed to examine the association of television (TV) time, the frequency of meals while watching TV and the presence of TV set in the bedroom with total and abdominal obesity and to assess whether physical activity (PA) attenuates the obesity risk of TV viewing.
Cross-sectional data were obtained from 2200 adolescents (46% boys) from 10 European cities, The Healthy Lifestyle in Europe by Nutrition in Adolescence study, between 2006 and 2007. TV viewing, PA (by accelerometry) and body composition were measured. Binary logistic regression analyses were performed.
Even adjusting by vigorous PA, TV in the bedroom (odds ratio [OR]: 1.33, 95% confidence interval [CI], 1.01–1.74) and >4 h d−1TV during week days (OR: 1.30, 95% CI, 1.02–1.67) (in boys) and eating every day with TV (OR: 1.18, 95% CI, 1.07–1.30) and >2 h d−1TV during weekend days (OR: 1.68, 95% CI, 1.25–2.26) (in girls) were significantly associated with total obesity. Likewise, in both sexes, having a TV set at bedroom was significantly associated with abdominal obesity.
Adolescents spending excessive TV time are prone to obesity independently of their PA levels. Families should put TV sets out of adolescents’ bedroom and keep TV sets off during meal times.