1 Cardio-Respiratory Engineering and Technology Laboratory, Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, AU, USA. research.andrew.stephens@gmail.com.
2 Cardio-Respiratory Engineering and Technology Laboratory, Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, AU, USA.
3 School of Public Health and Preventive Medicine, Monash University, Melbourne, AU, USA.