General Discussion
The first aim of this research was to determine the relationship between FB use, relatedness and exercise motivation. It was hypothesized that greater FB use would be associated with higher levels of relatedness and in turn greater autonomous and introjected regulation. In support of this hypothesis, we found that the relationships between all five types of FB use and autonomous motivations, introjected regulation and amotivation were mediated by relatedness. More specifically, through feelings of relatedness, FB use was associated with greater autonomous forms of motivation, including identified, integrated and intrinsic motivation, greater introjected regulation and less amotivation. Additionally, the intensity of FB use, which reflects the duration, frequency and emotional connectedness to FB, had associations with external and introjected regulation. The second aim of this investigation was to qualitatively explore student experiences of FB use, feelings of relatedness and exercise and physical activity behaviour. Key findings indicated that PA-related FB experiences have both positive and negative influences on motivation dependent on whether FB use leads to connection or disconnection, and how individuals interpret posts from others with reference to their self.