[Determinants of collaborative practices in schools in promoting healthy eating and physical activity and role of the nurse in these practices].

Context: Overweight and obesity rates have more than doubled among 12 to 17 year-olds over the past 25 years. To date, few studies have documented collaborative practices in activities aimed at promoting healthy eating and physical activity in schools, although collaboration is a key element in health promotion.

Objectives: To identify the determinants that influence collaborative practices in secondary schools.