Obesity, overweight, screen time and physical activity in Mexican adolescents

Abstract

Obesidad, sobrepeso, tiempo frente a la pantalla y actividad física en adolescentes mexicanos. Salud Publica Mex 2009;51 supl 4:S613-S620. Resumen Objetivo. Determinar si el tiempo que los adolescentes permanecen frente a pantalla y realizan actividad física se asocia con el sobrepeso o la obesidad. Material y métodos. Diseño transversal. Se incluyeron adolescentes de 10 a 19 años de edad, de la Encuesta Nacional de Salud y Nutrición 2006 (ENSANUT 2006). La variable dependiente fue el sobrepeso u obesidad y la independiente el tiempo frente a la pantalla. Se ajustó un modelo de regresión logística para estimar la relación entre el sobrepeso u obesidad con el tiempo frente a la pantalla, actividad física, edad, sexo, condición de estudiante, indigenismo, tabaquismo y consumo de alcohol. Resultados. Se estudió a 18 784 adolescentes. Se encontró una asociación positiva entre el tiempo frente a pantalla y el sobrepeso u obesidad. Conclusiones. El tiempo que los adolescentes mexicanos pasan frente a pantalla está asociado con el sobrepeso u obesidad.

Polymorphisms FTO rs9939609, PPARG rs1801282 and ADIPOQ rs4632532 and rs182052 but not lifestyle are associated with obesity related-traits in Mexican children

“…The number of hours per week that children engaged in intense physical activity were also asked, and recorded as Metabolic Equivalent (MET)/hour (a unit of MET represents a multiple of the oxygen consumption when at rest, which corresponds to 3.5 mL O 2 kg −1 min −1 . For example, if a person exercising expends 10 METs, he /she is using 10 times the amount of oxygen consumed when at rest) (Ridley et al , 2008; Morales-Ruán et al , 2009). Energy intake was assessed considering plausible intake levels according to the methodology used for ENSANUT2006 (Rodríguez-Ramírez et al , 2009).…”

Effect of a School-Based Intervention on Physical Activity

“…achieve recommendations (2,25,28,32,35). Surveys from numerous countries consistently report that less than half of children are sufficiently active and that physical activity declines with age through childhood and adolescence (2,25,28,35).…”

“…Surveys from numerous countries consistently report that less than half of children are sufficiently active and that physical activity declines with age through childhood and adolescence (2,25,28,35). In Mexico, the nationally representative 2006 Survey of Health and Nutrition reported that <40% of children and adolescents 10-19 yr old participate in recommended amounts of physical activity (25).…”

Overview of the nutritional status of the Mexican population in the last two decades

“…Screen time, or time spent engaging in passive activities such as watching television, playing video games, or using a computer, was positively associated with overweight and obesity among Mexican adolescents. 58 Similarly, a strong inverse relationship between physical activity levels and obesity was found among adult males. 59 In sum, the data collected as part of the ENSANUT 2006 and presented in this issue provides a snapshot of the health and nutrition status of the Mexican population at the onset of a new millennium.…”