1 Research Institute for Sport and Exercise, University of Canberra, Australian Capital Territory, Canberra, ACT 2601, Australia. Julien.Periard@canberra.edu.au.
2 Athlete Health and Performance Research Centre, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
3 School of Applied Physiology, Georgia Institute of Technology, Atlanta, GA, USA.