Email updates

Keep up to date with the latest news and content from BMC Public Health and BioMed Central.

Open Access Highly Accessed Study protocol

Design and evaluation of a treatment programme for Spanish adolescents with overweight and obesity. The EVASYON Study

David Martinez-Gomez12, Sonia Gomez-Martinez1, M Angeles Puertollano1, Esther Nova1, Julia Wärnberg1, Oscar L Veiga2, Amelia Martí3, Cristina Campoy4, Jesus M Garagorri5, Cristina Azcona6, M Pilar Vaquero1, Carlos Redondo-Figuero7, Manuel Delgado8, J Alfredo Martínez3, Miguel Garcia-Fuentes7, Luis A Moreno4, Ascension Marcos1* and EVASYON Study Group

Author Affiliations

1 Department of Metabolism and Nutrition, Instituto del Frío, Institute of Food Science and Technology and Nutrition (ICTAN), Spanish National Research Council (CSIC), Madrid, Spain

2 Department of Physical Education, Sport and Human Movement, University Autonomous of Madrid, Madrid, Spain

3 Department of Physiology and Nutrition, University of Navarra, Pamplona, Spain

4 Department of Pediatrics, University of Granada, Granada, Spain

5 School of Health Sciences, University of Zaragoza, Zaragoza, Spain

6 Department of Paediatrics, Clinica Universitaria, Pamplona, Spain

7 Department of Pediatrics, University of Cantrabria, Cantrabria, Spain

8 Department of Physical Education, University of Granada, Granada, Spain

For all author emails, please log on.

BMC Public Health 2009, 9:414  doi:10.1186/1471-2458-9-414

Published: 15 November 2009



The prevalence of overweight and obesity (OW/OB) among adolescents worldwide has increased since the 60 s. Spain has reached one of the highest OW/OB prevalence rates among adolescents from European countries. The aim of this methodological paper is to describe the design and evaluation in the EVASYON study (Development, implementation and evaluation of the efficacy of a therapeutic programme for adolescents with OW/OB: integral education on nutrition and physical activity).


The EVASYON was planned by a multidisciplinary team to treat OW/OB in Spanish adolescents. The EVASYON is a multi-centre study conducted in 5 hospitals in 5 Spanish cities (Granada, Madrid, Pamplona, Santander and Zaragoza) and two hundred and four OW/OB Spanish adolescents were recruited for this intervention. The treatment was implemented for approximately one-year follow-up. The adolescents were treated in groups of a maximum of 10 subjects; each group had 20 visits during the treatment period in two phases: intensive during the first 2 months (1st to 9th visits), and extensive during the last 11 months (10th to 20th visits). In order to assess the efficacy of the treatment, 8 dimensions were measured: diet; physical activity and fitness; eating behaviour; body composition; haematological profile; metabolic profile; minerals and vitamins; immuno-inflammatory markers. Moreover, genetic polymorphisms were also determined.


The treatment programme developed in the EVASYON study was designed as a national pilot study to be implemented as an effective treatment for adolescents with OW/OB into the Spanish Health Care Service.