This impact study was conducted by the Mulier Institute on behalf of JOGG in 2019 (February–June). A total of 659 children from nine different primary schools took part. Before and after the intervention, all pupils took a beep test to measure their endurance. In addition, teachers and children completed a questionnaire about sports, physical activity and The Daily Mile during both measurements.

Other important findings:

  • Teachers at three of the five schools that implemented The Daily Mile received additional support from JOGG with the implementation of The Daily Mile. This additional support did not provide added value for the implementation of The Daily Mile and did not affect the results concerning the children's endurance. The children's endurance improved both in the group of schools with support and in the group without support.
  • When asked how strenuous they found taking part in The Daily Mile, the children indicated that after twelve weeks they found The Daily Mile less strenuous than at the start.
  • All six teachers felt that The Daily Mile helped pupils expend their energy. The majority of teachers also felt that pupils enjoyed The Daily Mile.
  • According to teachers, examples of tips for maintaining high motivation when carrying out The Daily Mile include taking part themselves, encouraging pupils and coming up with different routes. Pupils consider adding exercises or a game important.

The results of the study are described in two publications:

  • Read the results of the impact study here in an English-language scientific article published in the journal ‘International Journal of Environmental Research and Public Health’.
  • Read the results here in a report in Dutch, including the process evaluation.