“…Individual constraining factors included the child’s age [ 20 , 37 , 45 , 50 , 52 , 53 ], feelings of stress [ 54 , 55 ], feeling comfortable at home [ 55 ], having a migration background [ 34 ], lower socioeconomic status (SES) [ 29 ], change to routines [ 27 ], pre-COVID sedentary time [ 44 ], pre-COVID activity levels [ 51 ], and mood states [ 56 ]. Context-related constraints included the caregiver’s level of education [ 32 , 33 , 34 ], living in an apartment [ 33 ], parent’s age [ 47 ], parent’s marital status [ 20 ], lack of playmates [ 57 ], family conflict [ 36 , 58 ], no outdoor space available [ 55 ], level of parents’ stress [ 49 ], lack of supervision [ 57 ], proximity to major roads [ 46 ], restrictions from COVID-19 [ 40 , 48 ], club training cancellation [ 40 ], enrolment in an early education center [ 33 ], and urban environment [ 51 , 59 ] (see Table 3 ).…”