“…For those adolescents, PA was not often appreciated, valued, and was not part of their self-identity e.g., [ 29 , 41 , 47 , 52 , 53 , 54 ]. A negative PA attitude became more prevalent with age [ 31 , 37 , 43 , 54 ] and was often associated with negative PA experiences. These adolescents did not like activities that were: imposed, repetitive, boring, traditional [ 31 , 45 , 46 , 53 , 54 ]; highly structured, intense, and non-challenging [ 29 , 40 ]; focused on performance/competition e.g., [ 34 , 35 , 36 , 38 , 48 ], and team sports [ 39 , 40 , 45 , 49 ]; where no autonomy/choice was given [ 53 , 54 , 55 ]; and that occurred in a non-supportive environment e.g., [ 29 , 31 , 51 , 52 ].…”