1 Departments of Physiology and Cardiology, Research Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands; Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom.
2 Departments of Physiology and Cardiology, Research Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands.
3 Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom.