EYTO-kids-Pilot: European Youth Tackling Obesity in Adolescents and Children.

The primary aim is to promote healthy lifestyles among young people, through the design and implementation of health promotion activities carried out by adolescents (12-14 years old) to scholars of primary education (8-10 years old), using social marketing and peer-led strategy. The secondary aims are: 1) to increase fruit and vegetable consumption and physical activity practice in scholars and adolescents; 2) to reduce sedentary lifestyles, sugary drinks and fast-food in scholars and adolescents. The EYTO-kids program is a randomized, parallel, intervention program with control group, with a 2 academic courses, 2015-2016 to 2016-2017 (10 months in total), in Reus (Spain). To achieve the aims, social marketing and peer-led methodologies will be used at the intervention design and implementation. Adolescents from secondary education (1st /2nd ESO: Educación Secundaria Obligatoria-Obligatory Secondary Education) will design and implement activities to scholars from primary education (3rd/4th primary education). The adolescents from the intervention group will design and implement activities to implement them in to children, and the control group will not receive any kind of intervention (only the assessment). Participation will occur according to the randomized sample size, where a minimum of 208 adolescents (104 as intervention and 104 as control group), and 602 scholars (301 as intervention and 301 as control group) will be involved. The inclusion criteria are: to have signed informed consent (from mother/father/guardian of the participant), to provide basic demographic data, to assist participating schools and to answer a lifestyle questionnaire.