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Table 1 Overview of the DOiT program

From: Exploring facilitating factors and barriers to the nationwide dissemination of a Dutch school-based obesity prevention program “DOiT”: a study protocol

Timeline Classroom component Environmental component Parental component
School year 1 6 theory lessons:   (1) Aimed at stimulating socialz support of the parents
  Aimed at raising awareness and information processing with regard to EBRBs   (2) Aimed at raising awareness of the availability and accessibility of healthy products and activities in the home environment
  Materials:   Materials:
  - 1 Textbook   - Information booklet
  - Online worksheets   - Homework assignments
  - Pedometer   - Information on DOiT website
  - Pocket-sized diary   - Optional parental meeting
  - Online computer-tailored advice   
  2 PE lessons:   
  Experiencing the acute effect of PA on the body measured by   
  (1) Pedometer   
  (2) Self-measured heart rate   
School year 2 6 theory lessons: Aimed at raising awareness of the unhealthy environment, finding solutions and setting a plan for improvement of the environment  
  (1) Aimed at facilitation of choice to improve behaviour   
  (2) Aimed at raising awareness of the unhealthy environment, finding solutions and setting a plan for improvement of the environment Focus on:  
   - Physical activity facilities in and around school  
   - Healthy school canteen  
   - (Un)healthy food retail outlets around school  
  Materials:   
  - 1 Textbook   
  - Online worksheets   
  - Small research   
  - Supportive video material   
  2 PE lessons:   
  (1) Experiencing the acute effect of PA on the body measured by self-measured heart rate   
  (2) Learn about sport possibilities in the neighbourhood   
Extra lessons 3 optional additional lessons:   
  (1) Cultural differences; learn about the cultural differences in food habits and physical activity   
  (2) Tasting; judging products by tasting, smelling and looking at (unfamiliar) snacks and soft drinks   
  (3) Cooking; preparing a healthy menu   
  1. DOiT = Dutch Obesity Intervention in Teenagers; EBRB = Energy balance-related behaviour; PE = physical education; PA = physical activity.