1. WHO. Global Recommendations on Physical Activity for Health 2011 [cited 2017]. http://www.who.int/dietphysicalactivity/publications/physical-activity-recommendations-5-17years.pdf?ua=1.
2. Global obesity: trends, risk factors and policy implications;VS Malik;Nat Rev Endocrinol,2013
3. WHO. Global Health Observatory Data 2014 [cited 2017]. http://www.who.int/gho/ncd/risk_factors/overweight/en/.
4. ENSANUT. Encuesta Nacional de Salud y Nutricion de Medio Camino. Instituto Nacional de Salud Publica, 2016.
5. Physical activity in overweight and obese adolescents: systematic review of the effects on physical fitness components and cardiovascular risk factors;F Vasconcellos;Sports Med,2014