Eur. j. pediatr. Eur. j. pediatr. Changes in physical activity patterns from adolescence to young adulthood: the BELINDA study Vanhelst Jérémy Béghin Laurent Drumez Elodie Labreuche Julien Polito Angela De Ruyter Thaïs Censi Laura Ferrari Marika Miguel-Berges Maria Luisa Michels Nathalie De Henauw Stefaan Moreno Luis A. Universidad de Zaragoza Gottrand Frédéric 2023 research-article