Mark worked as a high school physical education teacher before changing careers. Mark started working in the Australian Fitness Industry in 1989 and has been a personal trainer, group trainer, gym owner, PT business owner, international presenter, expert consultant, and served on multiple boards and councils across many industries. Mark completed a PhD in Sport & Exercise Science in 2009 and is an Accredited Exercise Physiologist (AEP) and Accredited Sports Scientist Level 2 (ASpS2) with ESSA, and a Master S&C Coach (ASCA-M3) with ASCA. After completing his PhD, Mark completed a three year post-doc and a three year Senior Research Fellowship in fitness research funded by an Australian Fitness industry partner. During this time, he started and acted as chief editor for the Journal of Fitness Research and lectured in Sport and Exercise Science at the University of the Sunshine Coast (UniSC). Mark is still active in research and post graduate supervision for Master’s and PhD students. Mark has had a dual career also working in high-performance sport as sport scientist and S&C Coach supporting Olympic and Paralympic medalists and world champions since 1996. Mark is currently the Senior S&C Coach for the Qld Academy of Sport at the UniSC Swimming Australia High-Performance Hub and Lead Physical Performance in High-Performance Sport at UniSC. Mark has also been Australian Paralympic Swimming Campaign Lead S&C since 2019 for all World Championships and Paralympic events. Mark has worked with FIT College since its inception in 2009 in many roles and currently works in curriculum development having written multiple formal vocational qualifications in fitness, sport, training and assessing as well as short professional development courses in a range of fitness related topics.