Objectively measured physical activity in European children: the IDEFICS study

K. Konstabel, Toomas Veidebaum, Vera Verbestel, Luis A. Moreno, K. Bammann, M. Tornaritis, Gabriele Eiben, D. Molnár, Alfonso Siani, O. Sprengeler, N. Wirsik, W. Ahrens, Yannis Pitsiladis