“…Often, participants were asked to report time spent in activities of different intensities (light/low, moderate, vigorous, and sedentary) in the previous month [ 77 ], or in a typical week [ 11 , 27 , 74 , 75 , 79 , 80 ], or in the last week [ 74 , 76 , 78 ], or in a typical day [ 10 , 72 , 73 , 81 ], or even in periods out of school (leisure time), as well as their current PA level [ 78 ]. Furthermore, in some studies children were also asked to report the estimated time spent in screen entertainment or other sedentary behaviours [ 10 , 11 , 72 , 73 , 74 , 75 , 76 , 78 , 81 ]. When parents were responsible for answering the questionnaire, their information was related to the time (minutes/hours), and/or frequency (days) with which their children were involved in PA of different intensities.…”