“…Furthermore, factors have been identified to encourage effective physical activity. These factors include the impact of the size and type of the schoolyard, fixed outdoor and extra equipment (Fjørtoft, Kristoffersen, & Sageie, 2009;Ozdemir & Yilmaz, 2008;Sallis et al, 2001;Verstraete, Cardon, De Clercq, & De Bourdeaudhuij, 2006), recess time in school (Ridgers, Carter, Stratton, & McKenzie, 2011;Ridgers, Stratton, Clark, Fairclough, & Richardson, 2006), green areas (Dyment, Bell, & Lucas, 2009;Lindholm, 1995;Sobel, 1993), improvements in school environment (Haug, Torsheim, Sallis, & Samdal, 2010), paintings in school ground (Ridgers, Stratton, Fairclough, & Twisk, 2007;Stratton & Mullan, 2005), availability of balls, and school size (Zask, van Beurden, Barnett, Brooks, & Dietrich, 2001). …”