The relationship signaled by the transition "as a result" is a cause-and-effect relationship.
The transition "as a result" signifies a cause-and-effect relationship. In this context, it means that Joe's training all summer long led to him making the track team.
The transition "as a result" indicates a cause-and-effect relationship between two events or actions. In this case, the cause is Joe's training all summer long, and the effect is making the track team. Joe's training resulted in his success in making the team.