ABSTRACT
It is interesting to note that PE has no identified threshold concepts, which leads to lack of status in our subject area and our profession. In order to understand threshold concepts, the chapter begins with interrogation of the notion of concepts. This leads more nuanced understanding of characteristics of threshold concepts and liminality. In delving the transformative nature of threshold concepts, we turn to learner disposition, the experience of flow and performance flow in movement contexts. In order to identify the threshold concepts pertaining to PE, we map the history of PE, through which PE is identified as a rich cross disciplinary space and more particularly an interdiscipline. The chapter closes highlighting PE's unique quality i.e. it is informed by both (a) the threshold concepts of every discipline which underpins it and (b) PE-specific threshold concepts which are created in the third space (interdisciplinary space) where all disciplines interact.
