Table 1.

Components (and their year of introduction) of the Lekker Fit! intervention on elementary schools in comparison with the regular elementary school programme

Since	Lekker Fit! intervention components	Regular school programme
2005	Three PE lessons per week	Two PE lessons per week
2005	A trained PE teacher provides all the PE lessons and coordinates the implementation of the intervention on school	The classroom teacher provides all the PE lessons
2005	Three 1.5-hour sessions of special themed education per year by the classroom teacher. Themes of special education are healthy diet, physical activity and making healthy choices	Schools are free to use education programmes on specific themes
2005	A PE lesson for several different sports by an external PE teacher, as a first step towards a sportsclub membership (an after school hours component)	Regular schools are given the same non-obligatory opportunity for these PE lessons
2006	The school sports clubs provide four trainings of different sports on a weekly basis (an after school hours component)	Regular schools are given the same non-obligatory opportunity for these trainings
2005	Annual weight and height measurements	–
2007	Additionally the PE teachers monitor the motor development of children in accordance with the Dutch basic protocol for PE	–
2005	An information meeting for parents on annual basis regarding the themes fruit, water, breakfast and physical activity	–
2005	The school dietitian signals overweight and obesity, based on the weight and height measurements, and provides parents with information	–
2012	Extension of the Lekker Fit! intervention to classes 1 and 2 (children aged 4 and 5 years old)
2013	The water campaign with community involvement; Children drink water at least two times per day during school hours	–
2013	The ‘enjoy fruit’ component; children only eat fruit or vegetables during their morning break	–
2015	The ‘treats’ component; In the Netherlands it’s a habit that children share treats among their peers on their birthday. This component presents guidelines regarding thse birthday treats. Guidelines say that one treat is enough and that a small treat is okay!	–

PE, physical education.