A school-based physical activity program to improve health and fitness in children aged 6–13 years ("Kinder-Sportstudie KISS"): study design of a randomized controlled trial [ISRCT...

by Knöpfli Martin, Pühse Uwe, Guldimann Regula, Schmid Marco, Roth Ralf, Puder Jardena J, Zahner Lukas, Braun-Fahrländer Charlotte, Marti Bernard, Kriemler Susi
Published 2006-06-01