Utilizing health education lessons to reduce screen time and to increase physical activity among 8th graders

Aittasalo M, Jussila A-M, Paronen O, Broberg A, Sievänen H, Vähä-Ypyä H, Tokola K, Vasankari T. Utilizing health education lessons to reduce screen time and to increase physical activity among 8th graders: the protocol of a randomized, controlled Kids Out-trial in Finnish schools. In: 9th Annual Meeting and 4th Conference of HEPA Europe: programme and abstracts. Helsinki, 2013:104-105