“…SDT is frequently used to understand motivation in the fields of sports and exercise [ 33 , 39 , 40 ]. It is one of the most important theoretical approaches towards the study of motivation [ 41 , 42 ] and is used, among others, to investigate the motivation to exercise of different groups of people [ 43 , 44 , 45 , 46 , 47 ], to investigate the characteristics of exercise goals [ 39 , 48 ], and, more generally, to study the motives for sports and exercise [ 40 , 49 , 50 , 51 , 52 ]. According to the SDT, experiencing competence or achievement (competence), personal/social connection (relatedness), and autonomy are drivers for high-quality motivation and are considered as “basic psychological needs” [ 50 , 53 , 54 ].…”