Junk food intake in children reduced by health education that addresses emotional issues
Teacher training followed by classroom education with information, activities, and emotional support improves lifestyles in teachers and students, according to research to be presented at ESC Congress 2019 together with the World Congress of Cardiology. The study suggests that knowledge alone is insufficient to change behaviour.
“Numerous studies have addressed health issues in the school setting, but most have focused on physical activity and nutrition, with little attention to emotional issues such as self-esteem, depression and eating behaviours,” said study author Dr. Carolinne Santin Dal Ri, a paediatrician at the Institute of Cardiology of Rio Grande do Sul, Porto Alegre, Brazil.
The Happy Life, Healthy Heart programme randomly allocated ten public schools in the city of Frederico Westphalen, Brazil, to the intervention group (five schools) or control group (five schools). The study included 473 students aged 6 to 12 and 32 teachers. Baseline assessments included weight, height, physical activity, food intake, and health knowledge in children; and physical activity and food consumption in teachers. Measurements were repeated after the intervention was completed.
The intervention had two stages: teacher training followed by students in the classroom. Teachers attended four meetings over a four-month period, were given a booklet, and had access to video lessons. The material was in seven chapters:
1) risk factors for cardiovascular diseases in childhood;
2) choice of healthy foods;
3) food labelling;
4) sodium, sugars and fats;
5) emotional health and quality of life;
6) physical activity; and
7) healthy practices and changes in habits.
Each section contained theory plus suggestions for classroom activities based on the theme, age of the children, and intended goals.
In the classroom, teachers covered one theme per week, including at least one activity. Teachers were free to choose or amend the activities and could incorporate them into projects based on the school’s syllabus. To encourage teacher participation, a group was created on a social network where they received messages and reminders from the researcher on the topic they were supposed to work on. Teachers also shared their own experiences. The researcher visited the intervention schools to stimulate teachers and offer guidance.
For the control group schools, teachers did not participate in the training course and students attended the school’s usual classes about health and healthy eating based on the curriculum.
Both students and teachers benefitted from the intervention. The proportion of students following Brazilian Food Guide advice to avoid pizza/hamburgers and soft drinks increased significantly by 15% and 20%, respectively. In addition, there was a 28% increase in the number of teachers who were physically active.
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