“…The 13 studies included were carried out in seven different countries: Canada [ 16 , 17 ], United States [ 18 , 19 , 20 , 21 , 22 , 23 ], Japan [ 24 ], South Korea [ 25 ], United Kingdom [ 26 ], South Africa [ 27 ], and Thailand [ 28 ], with a total of 7193 participants. The majority of the studies measured physical activity per week, although some included other variables of interest regarding physical activity like steps per day [ 23 , 28 ], physical activity per month [ 23 ], leisure time physical activity [ 17 , 18 , 28 ], going to the gym [ 20 , 21 ], outcomes expectancies [ 16 , 28 ], intention of carrying out physical activity [ 24 ], physical activity action planning [ 16 ], motivation to be active [ 20 , 23 ], state of change [ 23 , 24 ] and physical activity enjoyment [ 23 ].…”