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Table 1 Examples of determinants of eating and physical activity behaviour in children targeted by the Healthy Lifestyles Programme

From: Evidence, theory and context - using intervention mapping to develop a school-based intervention to prevent obesity in children

Personal Determinant External Determinants
Knowledge and skills to perform tasks required by the intervention (e.g. communicating with parents, select healthy snacks/drinks) Norms
Food preferences and perceived enjoyment Modelling by parents
Food cravings (urges for unhealthy foods) Modelling by peers
Activity preferences and perceived enjoyment (sedentary activities vs more active pursuits) Availability and accessibility of healthy and unhealthy foods in and outside the home and in the school environment
Perceived familiarity of foods/physical activities Availability and accessibility of physical activity opportunities in school and during parental care
Perceived norms regarding choice of food/leisure activities in family and peer group Family support (emotional, instrumental and informational)
Self efficacy regarding selection of food/physical activity Reinforcement from parents, teachers and peers
Self awareness regarding diet and physical activity and screen-based sedentary behaviours  
Attitude to the Programme (intention to make changes)  
Perceived importance of eating healthily and exercising (pros and cons of making a change)