I would like to thank all those who made this journey possible. Thanks are extended to Prof. Dave Collins for his support and guidance throughout the PhD process. I would also like to thank sportscotland for their support and in particular Lawrie Randak and Elaine Wolstencroft. A special thanks to the teachers from North Ayrshire and Stirling with whom I interacted during this project. Without your enthusiasm and willingness to step out of the comfort zone this research would not have been possible. A special thanks to Russ, Katie, Rob and Lynsey for your support and input throughout this research. I would also like to acknowledge all the participants who took part in this research. A special thanks to athletes and their parents for their willingness to reflect openly on their personal experiences. Thank-you to my parents for their support throughout my 'extended' education. Finally, thank-you Chris for your support, valuable insights and enduring patience.